### animal | arthropod:

Spider
* All spider mites spin fine strands of webbing on the host plant - hence their name.
* All spiders are beneficial in the garden because they eat a variety of pest insects
  - carnivorous and secure live prey either by hunting or trapping spider bites, stings
  - poisonous
  - predacious and eat mainly insects
* All spiders are predators and many contribute significantly to biological control
  - who feast on insects
* All spiders are predators, feeding almost entirely on other arthropod s, especially insects
  - mainly on insects and other small arthropods
  - mostly on insects
  - predatory creatures
  - venomous including tarantulas which can be capable of delivering a painful bite
  - venomous, but only two are of medical importance in Southern California
  - eat meat, which means they're carnivores
  - have a definite structure
* All spiders have a pair of jaw like fangs
  - jaw-like structures known as chelicerae
  - eight legs and most have eight eyes
* All spiders have fangs and most kinds have poison glands
  - that they use to bite their prey with, and most have venom glands
* All spiders have four pairs of legs and a set of leg-like appendages called palps
  - legs and two major body regions
  - some amount of venom with varying degrees of potency
* All spiders have two body segments, a cephalothorax in front and an abdomen behind
  - body-segments, a cephalothorax in front and an abdomen behind
* All spiders have venom and use it to help capture prey
  - that is used to paralyze their prey
* All spiders have venom, but, in fact, most of the dangerous ones shy away from people
  - that's how they catch food
  - possess venom which they use for paralyzing prey and for self defense against predators
* All spiders produce silk but only some build webs
  - from glands near the tip of the abdomen
  - shed their skin
  - use sucking as their digestive means
* Ca on simple red chili powder with traditional Southwest flavor.
* Every spider is venomous, but a very small number of species are really dangerous.
* Many spiders are active at night and can be found by shining a flashlight into vegetation
  - brightly colored, and some are even shaped like psychedelic witch-doctor masks
  - capable of producing mild skin lesions when they bite
  - nocturnal , they are most active during the night
  - small and have small mouth parts
  - build a retreat of silk to hide in too
  - lay their eggs in silken sacs
  - spin silk cocoons around masses of their eggs and sometimes around their prey
* Many spiders spin webs to catch insects for food.-eating birds, and even wasps
  - entrap their prey
  - trap their food in webs
  - use their sticky silk webs to catch food, which consists of tiny animals
* More spiders tends to mean more bites.
* Most spider mites overwinter as adults, hidden in bark cracks or under debris around gardens
  - prefer conditions
* Most spiders also breathe through spiracles
  - have a sense of taste and smell, which play a role in feeding and reproduction
  - ambush prey
* Most spiders are beneficial because they feed on insects
  - from the Great Lakes region, with a small number of exotics
* Most spiders are harmless to people
  - yet helpful as they keep other insect under control
  - inside web
  - located in web
  - predators of insects, and thus are beneficial
  - predators, they capture prey
  - small, inconspicuous arthropods which are harmless to humans
  - vulnerable to frogs
  - attack soldier beetles
  - attract prey
  - become pests
* Most spiders bite people
  - victims
* Most spiders can live for several months without food
  - one or two years
  - carefully wrap their eggs in silk they produce from their own body
* Most spiders catch food
  - collect food
* Most spiders come from eggs
* Most spiders construct some type of nest
* Most spiders consume materials
  - plant materials
  - control pests
* Most spiders create egg sacs
* Most spiders detect presence
  - don t possess the mouthparts capable of breaking human skin
* Most spiders eat beetles
  - household insects
* Most spiders eat insects, but some larger spiders eat frogs and birds
  - they can also eat other spiders
  - live insects
  - mantises
  - mates
  - mosquitoes
  - other insects
  - plants
  - small insects
  - enter habitats
  - excavate burrows
  - extend legs
* Most spiders feed on fly insects
  - organisms
  - upon insects
* Most spiders find prey
  - underwater prey
  - follow prey
* Most spiders go through development
  - phases
  - grab prey
* Most spiders hang from silk thread
* Most spiders has-part extremities
  - mandibles
  - organs
* Most spiders have a life cycle similar to the black widow, but they each have unique features
  - blood
  - characteristics
  - deadly venom
  - different habitats
* Most spiders have eight eyes and eight legs
  - in various arrangements
* Most spiders have eight eyes, a head, thorax, abdomen and eight legs
  - although some have six or two
  - and the jumping spiders have the best eyesight of all
* Most spiders have eight eyes, but some have fewer
  - some have six, four or two
  - some, like the brown recluse spider, only have six
  - the brown recluse has six eyes arranged in a distinctive pattern
  - some only six and several have fewer or none
  - simple eyes
  - exoskeletons
  - fangs too small or too weak to puncture human skin
  - four pairs of eyes
  - guts
  - hairy legs
  - heads
  - little defense against insecticides and black widows are no exception
* Most spiders have long legs
  - thin legs
  - lungs
  - movement
  - only one lung, however there are some with two
  - poor eyesight and react to vibrations and motion
  - ranges
  - sensors
  - tendencies
  - three pairs of spinnerets, but some have only two pairs
  - unique characteristics
  - venomous fangs
  - vision
  - hear sound
* Most spiders hide in cracks, darkened areas, or areas where they can construct their web
  - interiors
  - rooms
* Most spiders inhabit different environments
  - many different environments
  - inject their prey with venom through fangs
* Most spiders kill ants
  - aphids
  - fly ants
  - lay eggs
  - leave a trail of silk as they walk
* Most spiders live either one to two seasons
  - for one year
* Most spiders live in ecosystems
  - homes
  - undergrowth
* Most spiders live only a year or so, molting five or six times before reaching maturity
  - love trees
* Most spiders make a natural fiber that is also called silk
  - nests
  - move legs
* Most spiders occur in forests
* Most spiders possess bodies
  - cobwebs
  - sex
* Most spiders prey on diamondback moth larvae
  - primarily interact with the world through tactile sensation
* Most spiders produce silk draglines and excreta as they move through the environment
  - pull prey
  - put their eggs into silk sacs
  - relate to tarantulas
  - release thread
  - rely on vision
* Most spiders require environments
  - resemble spiders
  - rest on web
* Most spiders run across bathroom floors
  - ceilings
* Most spiders seek prey
  - shelter
* Most spiders seize arthropods
  - sense presence
  - serve as pests
* Most spiders sit in web
  - on trees
* Most spiders spin sticky webs to catch insects to eat
  - which they use to capture insects
  - webs to catch their prey, or at least lie passively in wait
  - spread web
  - suck food
  - swallow food
* Most spiders thrive in environments
  - ground
  - throw web
* Most spiders touch front legs
* Most spiders use legs
  - rear legs
  - silk to make webs to trap or drop on prey
  - venom to kill their prey
  - webs to catch prey
  - vary the thickness and stickiness of their silk for different uses
* Most spiders wait for caterpillars
  - walk on legs
* Some spider mites cause damage
  - extensive damage
  - damage trees
  - destroy gardens
  - infest marigolds
  - spin thread
* Some spiders adapt to habitats
  - pressure
  - various habitats
* Some spiders also eat omnivorous leafroller larvae, mealybugs, mites, and thrips
  - have spiracles
  - inject enzymes that liquefy the prey
  - appear in holes
  - are able to detect and catch a flying butterfly in mid-air
* Some spiders are active hunters that chase and overpower their prey
  - hunters, such as wolf spiders, jumping spiders or crab spiders
  - cannibalized by their mates
  - expert trappers
  - harmful to humans because they hurt people or domestic animals
  - inside bushes
* Some spiders are located at ceilings
  - treetops
* Some spiders are located in environments
  - houses
  - rainforests
  - malignant and are used by spammers to harvest email addresses
  - member of families
  - so rudimentary that they create more work than they eliminate
  - very attractive to look at
  - voracious and eat nearly anything of the right size
  - web spinners
* Some spiders attack plants
  - sheep
* Some spiders attract animals
  - mice
* Some spiders avoid people
  - become pets
  - belong to families
* Some spiders bite animals
  - cattle
  - dogs
  - girls
  - goats
  - livestock
  - rabbits
  - tails
* Some spiders build frames
  - tents underwater
* Some spiders build their webs on the ground
  - where flying insects including butterflies can be trapped
  - trapdoors under which they lie in wait for unsuspecting prey
* Some spiders can bite humans and cause severe physical reactions
  - live most of their lives under water in bubble webs
  - only see the difference between light and shadow
* Some spiders carry sacs
* Some spiders cause death
  - injuries
  - visible injuries
  - chase down or pounce on their prey instead
  - check where a word is placed in a document
  - come to surfaces
  - consume beetles
  - descend from treetops
  - develop resistance
* Some spiders die after laying the eggs
  - of hunger
* Some spiders dig burrows
  - deep burrows
  - homes under the ground
  - do damage
* Some spiders eat animals
  - bees
  - enemies
  - fish
  - grasshoppers
  - many other small animals
  - other animals
  - partners
  - pollen
  - proteins
  - silverfishs
  - woodlouses
  - emerge in springs
  - engage in care
* Some spiders enter buildings
  - fields
  - even produce an ultraviolet silk to attract insects
* Some spiders feed on nectar
* Some spiders feel vibration
  - wind
  - find burrows
  - flip on their backs to molt, while others lay on their sides
  - generate pressure
  - get their food almost exclusively by stealing it from other spiders
* Some spiders go through incomplete metamorphosis
  - simple metamorphosis
  - grow into adults
* Some spiders has-part exoskeletons
  - jaws
* Some spiders have antennas
  - appearances
  - better vision than others
  - body size
  - book lungs
  - claws at the end of each leg
  - crevices
  - cuticles
  - defense mechanisms
  - differences
  - external sex organs
  - fresh water
  - gills
  - habitat requirements
  - life stages
  - muscles
  - reputations
  - senses
  - small crevices
  - specific habitat requirements
  - spines
  - spots
  - teeth
  - tracheae
  - undersides
  - unique defense mechanisms
  - up to six or eight or twelve eyes
  - help scientists
  - hide and pounce on their prey
* Some spiders hide in corners
  - flowers
  - rubbish
* Some spiders hunt animals
* Some spiders inhabit areas
  - farmland
  - outdoor areas
  - tundra
  - inject venom
  - invade residences
  - jump and pounce
  - keep web
* Some spiders kill children
  - cockroaches
  - dangerous spiders
* Some spiders live for several years
* Some spiders live in Alabama
  - Canada
  - Missouri
  - Namibia
  - Nebraska
  - Tennessee
  - boxes
  - countries
  - crops
  - different countries
  - furniture
  - greenhouses
  - islands
  - meadows
  - nests and some spiders live in webs
* Some spiders live on ground
  - underground or on the ground
* Some spiders look like adults
  - quite spectacular when taken out of their natural habitat
  - lose limbs
  - love food
* Some spiders make a refuge of silk into which they retreat
  - specialty of hunting for prey below the surface of ponds
  - tunnels in the ground with escape routes in case of intruders
* Some spiders manage to use the 'signalling snare' technique of a web without spinning a web at all
  - signaling-snare technique of a web without spinning a web at all
* Some spiders occur in Africa
  - Florida
  - Mexico
  - caves
  - only go a couple of levels deep
  - perform elaborate mating dances, while others present their mates with gifts
* Some spiders play in environments
  - walls
  - pose threats
* Some spiders possess bands
  - toxins
  - prefer food
  - prey upon woodlouses
  - produce different webs when young than when mature
* Some spiders reach adulthood
  - full maturity
* Some spiders release enzymes
  - reproduce during periods
  - require chemicals
  - resemble crabs
  - rest on islands
  - result in damage
  - secrete pheromone
  - seek mates
* Some spiders share ancestors
  - common ancestors
* Some spiders share same ancestors
  - show variation
  - sit in trees
* Some spiders sit on flowers
  - spin silk webs, and others line their burrows with silk
* Some spiders spin webs to catch their prey
  - while others merely stalk their prey
  - spread diseases
  - steal food from other spiders
  - store food
* Some spiders suck blood
  - threaten trees
* Some spiders thrive in conditions
  - dry conditions
* Some spiders use fangs
  - methods
  - web snares to trap prey and all construct a silk sac to deposit eggs
* Some spiders wait for butterflies
  - prey to get caught in their webs while others actually hunt for prey
* Travel to sites with rich information about spiders.
* also bear a set of special abdominal limbs that they use to spin silk
  - catch other insects, like mosquitos and flies
  - clean themselves sporadically whilst feeding
  - crush thier prey with their chelicerae
* also eat flies and mosquitoes which carry diseases
  - many insects that bother humans, such as mosquitoes and cockroaches
* also have extra tools called spinnerets
  - in the joints of their limbs sensors that detect forces and vibrations
  - natural enemies such as wasps, birds and reptiles
  - lack wings and antennae
  - make draglines out of the same sticky, liquid silk
  - prey on numerous insect pests
  - produce venom they inject through fangs to quickly kill and digest prey
  - seem to like nesting in the bunchs of fruit
  - spend a lot of time grooming their legs
  - use their silk as parachutes and to shelter themselves and their young
* apprehend their prey in a variety of ways.
* are R-strategists.
* are a common part of their diet
  - lineage of predominantly aggressive and distinctly territorial hermits
  - actually more closely related to lobsters
* are also arachnids
  - common inhabitants of old cocoons
  - know to feed upon the young nymphs
  - very effective in controlling household insects
  - always a great concern when they are found inhabiting in the same place as people
* are among the first to arrive due to their amazing abilities at dispersal and colonization
  - main predators of any land community, and they are very numerous
  - an important and fascinating part of our natural environment
  - arachnids, a group which includes all mites
  - arthopods, members of the class Arachnida
  - arthropod relatives of insects
* are beneficial because they eat many insects that themselves can be harmful to our gardens
  - but one example of species with more primitive reproductive organs
  - cannibalistic
* are capable of detecting chemical cues produced by insect prey
  - producing tremendous amounts of silk during their lifetimes
  - chelicerates and therefore arthropods
  - classified as invertebrates
  - common, but few people stop to observe their beauty or watch their behavior
  - commonly mistaken for insects
* are creepy creatures
  - in that they usually appear so subtly
* are different from insects, spiders have eight legs and insect only have six legs
  - endemic to every continent except Antarctica
  - exclusively carnivorous, seizing only live prey
  - extremely important in keeping insect populations under control
  - fanglike to penetrate prey, inject poison
  - found all over the world, from the tropics to the Arctic
  - general predators that feed on small insects and other arthropods
* are generally carnivorous and feed only on living prey
  - shy and try to avoid contact with humans, and for good reason
  - helpful to people because they eat harmful insects
* are important biological control agents of animal and plant pests
  - in controlling insect pests in most agricultural crops
  - in a different Order than mites
  - insectivores, sure, but many also have a taste for plants
* are located in basements
  - cellars
  - closets
  - cupboards
  - garages
  - mail boxs
  - major predators of insects, including many insects that are pests to humans
  - members of the large arthropod group called arachnids
  - most visible and cause the most concern in the fall, when they often move into homes
  - mostly solitary
  - none too common
* are numerous and live worldwide
  - occur worldwide
  - of separate sexes
* are often confused with insects, but spiders have two body regions and eight legs
  - extremely abundant in terms of their populations
  - present as well
  - oviparous, which means their young come from eggs
  - part of the Arachnid animal group
  - practically everywhere
  - predatory and prey mostly on insects
  - programs
* are quite versatile and they do well in all types of habitat
  - weak, but still very annoying
  - shy and non-aggressive, and prefer to be left alone
  - similar to insects but have eight legs and no antennae
  - small eight-legged creatures
  - solitary hunters, though exceptions can be made
  - superb insect predators
  - synonymous with Robots, as are Wanderers
  - territorial animals who prefer to live by themselves individually
  - the largest group of arachnids
  - tireless
* are useful in keeping down pest insect populations
  - models for the study of evolution
  - venomous animals
* are very common and inhabit a variety of different habitats
  - important predators in many ecosystems
  - interesting and much-maligned animals
  - sensitive to vibrations, especially in their webs
  - shy creatures
  - soft bodied and shrivel terribly if left to dry like insect specimens
  - well known for capturing and consuming all types of insects, including many pests
* are, by far, the most important predator of insects in the world.
* attack beetles
* avoid vinegar's acid.
* belong to a class of animals called arachnids.
* belong to the class Arachnida
  - order Araneae
  - when they're squeezed between fabric and skin
* blend into their living environment.
* build webs from silk produced in their abdomen
* can also serve as cockroach predators
  - be advantageous to man in that they help to control the insect population
  - control stored-grain pests, bedbugs, cotton worms and pea aphids, to name a few
  - dig deeper
  - easily find their way in through even the smallest holes
  - get very large
  - have zero to twelve eyes
  - live anywhere they can find food like fields, woods, swamps, caves and deserts
  - make bridges for themselves
  - overwinter in any stage of their development
  - range in size from extremely small to very large
  - regrow missing legs or parts of legs
  - repeatedly bite
  - run rapidly
  - sense a flying insect from several centimetres
  - spin silken web from a pair of specialized glands in the abdomen
  - walk on water
* catch and eat their prey and are also caught and eaten by their enemies
* catch their food in a lot of different ways
  - unsuspecting prey with their sticky webs
* change little during growth, except in size.
* come in a variety of brilliant colors
  - many shapes, sizes, colors, and have many different habitats
* commonly lose legs in encounters with predators or conspecifics.
* complex crater in Western Australia.
* constantly make a chirping noise.
* construct irregular webs
* consume many different kinds of insects, but they themselves are prey to other animals
  - only liquids
* create and use silk
  - silk with the help of tiny glands on their rear-ends
* depend on silk throughout their lives.
* differ from insects by lacking compound eyes and wings
  - in the number of spinnerets, most having six but some have two or four
* diligently spin strand after strand of web, then wait for their prey to encounter the web.
* do best under conditions of high humidity and moderate temperatures
  - fight when they meet
* don t always make permanent homes.
* eat a lot of insects that are agricultural pests and eat our food
  - bugs, so get used to buying crickets or other appropriate insects at the pet store
  - grasshoppers that destroy crops
* eat insects and some pest species
  - that happen to fly into it's web
  - which carry diseases and ones which destroy crops
  - many small caterpillars
  - millions of insects a year
  - mosquitoes, flies and ants
* eat other animals
* enlarge abd repair their webs before bad weather.
* excrete insoluble guanine crystals to conserve precious water.
* exhibit varying levels of sociality.
* feed mostly on insects but some capture and eat tadpoles, small frogs, small fish and mice
  - off of dead insects
* feed on common indoor pests, such as roaches, earwigs, mosquitoes, flies and clothes moths
* feed on insects and other small invertebrates
  - which become entangled in their webs
  - the body fluids of their prey
  - primarily on insects and other spiders
* flexibly chooses aggressive mimicry signals for different prey by trial and error.
* float into the area on silken threads.
* forage together in the treetops, often quite actively.
* foretell events by writing in their webs.
* form when tiny blood vessels close to the skin's surface dilate or break.
* frequently capture bees in their webs.
* get into the house do so through cracks and crevices.
* give off a very powerful type of chemical when they are ready to mate.
* grow by shedding their skeleton and replacing it with a bigger one
  - through an incomplete metamorphosis
* has two motors for driving the legs.
* hatch from eggs
  - in the spring or fall
* have a body of two distinct sections
  - generally bad reputation
  - great range of variation and lifestyle, although all are predatory
  - life cycle, and reproduce by laying many eggs
  - number of eyes
  - peculiar system by which they move their legs
  - separate head and body which are joined by a narrow waist
  - set of appendages on their faces called pedipalps
  - single-chambered, tubular heart, arteries and veins but no capillaries
  - unique craft known as spinning - more precisely, spinning silk
* have an exoskeleton, or an outside covering
  - open, blood circulatory system
  - outside skeleton
  - both sticky and non-sticky strands in their webs
* have different habitats
  - means of obtaining their prey
  - ways of catching their prey
* have eight eyes, eight legs, two body parts, outside skeletons, and fangs
  - jointed legs and two body parts
* have eight legs and insects have only six
  - two main body parts
  - usually have eight eyes
* have eight legs but ants, bees, beetles and other insects have only six legs
  - beetles and other insects only have six
  - legs, insects have only six
  - tiny eyes
  - walking legs and insects have six
  - fangs that are used to inject poison to paralyze or kill their prey
  - habitats where they are born and where they live
  - heart rates of thirty beats a minute
  - needs of webbing
  - neither wings nor antennae
* have no antennae, only two body parts and eight legs
  - bones, Yet they live in many zones
  - one , two , or three pairs of spinnerets
  - only two body divisions and eight legs
  - poisonous glands which open from the chelicerae
  - seven-segmented legs and most have two or three claws
  - six spigots for spinning silk, and they mix their fluids to regulate the composition
  - small hairs on their legs that they can hear with
* have special chelicerae which have been modified as fangs for feeding
  - grip pads on the bottom of their feet
  - mouth parts, or jaws, called chelicerae, that look like farngs
  - spinnarets towards the rear of their underbellies
  - strategies at different ends of a scale
  - the mandibles converted into poison fangs, or falcers
* have their own names, just like browsers
  - version of lungs to get oxygen from the air
  - transparent blood
* have two body regions cephalothorax and abdomen
  - clearly distinct from one another, separated by a thin waist
  - in contrast to insects which have three
  - segments, the abdomen and the cephalothorax
  - segments and flies have three segments
* have unique characteristics
  - mouthparts comprised of chelicerae, or jaws, that end in fangs
* help control garden pests
  - insect pests that destroy our crops
  - curtail disease spread
  - greatly to control insects that destroy crops or carry diseases
* hide in gardens
* hunt for food
  - other insects, so they keep the overall creepy crawlie population down
* includes brains
  - carapaces
  - cell membranes
  - cells
  - cytoplasm
  - nuclei
  - plasma membranes
  - shells
  - skulls
  - thoraxes
  - vacuoles
* inject venom into the body of a captured insect to paralyze it.
* is an arachnoid
  - another medicine that varies greatly from tribe to tribe
  - known in many cultures as the weaver of language, and of the world
* is the clever and mischievous character in African folklore
  - guardian of the ancient languages and alphabets
* just knowing how to make a web is the same.
* keep a web secure by constantly checking it
  - the fly and mosquito populations down
* know how to move around a Web.
* lay eggs for their reproduction
* like to live in dark places and they also tend to live in the web that it created
  - nest inside, and they can block gas
* live all over the world.
* live almost anywhere
  - everywhere, including inside homes and buildings
* live in all sorts of environments
  - almost every habitat on earth
  - every habitat except for the polar regions and the oceans
  - the bark and the leaf litter hunting and laying traps for other microorganisms
* look different depending upon their habitat.
* mainly produce silk to spin webs.
* make a habit of catching insects that fly around their web
  - variety of silks as lifelines to food, survival and communication
  - different webs in different places to trap many kinds of prey
  - egg sacs, however, there are several different methods the spiders use
  - great pets for kids
  - many different kinds of silk, which are used for different purposes
  - silk webs as snares to catch prey and to hold egg sacs
  - their egg sacs with silken threads shaped like a ball
  - webs that link sites across the world
* mites -The leaves are speckled with tiny, pale dots
  - a concern in peanut fields
* mites a problem in hot, dry weather
  - low humidity areas
* mites cause discoloration and speckling of holly foliage
  - green leaf color to take on a stippled appearance
  - devour plants with wild abandon and are closely related to spiders
  - disperse by crawling and by airborne movement
  - feed and reproduce on the underside of leaves
* mites feed on a wide range of ornamental plants
  - plant sap and prefer to live on the leaf underside
* mites feed on the foliage leaving it looking rough and speckled
  - of host plants, sucking the sap
  - leaves of strawberries and ornamentals
  - plant juices, resulting in leaves appearing puckered and sandblasted
  - underside of leaves by sucking plant sap
  - with piercing mouth parts, which cause plants to appear yellow and stippled
  - frequently attack severely during dry years
* mites in dry areas, leaf spotting
  - locations
  - sites and dry years
  - very hot and dry periods
  - infest pansies stressed by hot, dry conditions
  - lack chewing or piercing-sucking mouthparts
* mites like a hot, sunny area, the same as pyracanthas
  - dry, hot conditions
  - the heat and hate a windy environment
  - live and feed on a wide variety of plants grown in Nevada gardens
  - love heat and stagnant, non-moving air
  - mature in the spring time in as little as one week
* mites on conifers and broad-leaved evergreens are cool weather pests
  - honeylocust, linden, elm, willow, and oak are destructive in the summer
  - only survive because of their sheer numbers
  - overwinter as adults in fencerows and woodlots
  - peak in the summer months and flourish in the heat
* mites puncture cells and extract plant juices mainly on the lower surface
  - plant tissue with piercing mouthparts to feed on plant juices
  - suck plant juices with their piercing-sucking mouthparts
* mites thrive in hot and dry conditions
  - under warm and dry conditions
  - when it's hot and dusty
* mites, in particular, are the biggest problem to the indoor or hydroponic grower
  - on the other hand, are much harder to spot because they are so tiny
* move indoors seeking warmth
* occur in a large range of sizes
* often attach highly visible silk bands, called decorations or stabilimenta, to their webs
  - their web between a bush and the nearby grass
  - convert nitrogenous waste into uric acid
  - eat part of their web
  - kills the male after mating
  - spend a fair bit of time grooming their legs
  - spin their webs across gaps around doors to capture insects trying to enter
  - wrap their prey in a thick coat of web
* only bite when disturbed
  - have two parts to their body
  - use the biting and the venom to make their prey immobile
* paralyze prey with neurotoxic venom of some sort.
* perform cannibalism under a range of circumstances.
* play an important predatory role in many ecosystems
  - role in nature by keeping insect populations under control
  - the important role of general predator in ecosystems
  - booklungs
* possess eight legs , in contrast to insects, who possess only six
  - compared with the six of the insects
* prefer areas with high humidity and stable temperatures
  - quiet undisturbed areas
  - quiet, undisturbed areas such as closets, garages, basements, and attics
* prey on almost any insect that comes within their range
* produce a silk-like thread from six spinnerets located on the abdomen
  - strong silk that they use to construct webs for trapping prey
* produce enzymes to predigest their prey
  - they prey
  - several types of silk from different types of spinning glands
* produce silk from glands called spinnerets
  - their spinneret glands located at the tip of their abdomen
  - that is secreted as a liquid through the spinnerets and hardens on air contact
  - silks that are astonishingly strong
* produce up to seven different types of silk, each with distinct mechanical properties
  - webs but do so to catch prey
* protect themselves from their natural enemies.
* range in size from barely visible to many inches across.
* rank just behind bees and wasps as the most feared arthropod.
* reproduce by laying eggs contained in an egg sac
  - in a silken egg sac
  - their eggs in a sac
  - sexually and fertilization is internal but indirect
  - sexually, but males use an unusual method to transfer their sperm to a mate
  - year round in tropical regions
* roam floors.
* search out living conditions free of scent and vibrations.
* send out long strands of silken thread that are caught by the wind.
* serve an important role as predators feeding on insects and small animals
* shake their heads and laugh when they're having a good time.
* soft shell crab delicacy.
* sometimes die right after their spiderlings hatch
  - take up a position near insect activity to capture strays
* spend most of their lives searching for food
  - their summer eating a lot of insects and growing
* spin a web
  - short webs
  - silken chambers to cover eggs and for protective retreats
  - the fine silk threads from glands in their bodies
* spin their webs from solutions of polypeptides in water
  - of liquid silk, which solidifies as it comes out of specialized glands
  - webs, mirrored with spray
* spinning their webs is both innate and stereotyped.
* squeeze out a long thin silk filament to construct their webs.
  - the fluids from their live prey and therefore have a sucking stomach for that purpose
* survive in every habitat on land except the very coldest.
* tend to be good parents.
* try to protect and defend themselves from their enemies.
* two-deck solitaire game.
* use a combination of an exoskeleton for protection and fluid pressure for movement
  - camouflage to blend in with colors and patterns
  - dragline silk to form the guylines and framework for wheel-shaped orb webs
  - fangs to bite their prey
  - many ways to catch, eat, and digest their prey
* use pedipalps as copulatory organs
  - to hold and chew food
* use silk in mating activities, too
  - threads for all sorts of purposes, from lining their nests to catching prey
* use silk to capture prey, line burrows, and protect eggs
  - protect their eggs
  - raise young, make homes, and hunt prey
  - spin in and to make webs to catch food
  - their fangs to inject venom into their prey
* use their silk to make webs, wrap prey, wrap their eggs, and as a safety line
  - spin webs, construct their egg sacs and build shelters
  - venom as a defense mechanism and to immobilize their prey
* use their webs to catch prey
  - their prey and to defend themselves
  - venom to subdue their prey
* uses other organs.
* usually eat insects.
* usually have a round or oblong body and eight legs
  - six fingerlike silk glands called spinnerets located beneath their abdomen
  - live in underground burrows and only surface to feed or mate
* vary widely in color, shape, size, and habits.
* veins and varicose veins are different forms of the same thing.
* veins can be a sign of more severe leg vein disease
  - cause burning, itching, and a feeling of heaviness in the legs
  - typically appear on the legs
  - usually take on one of three basic patterns
  - vary in size and often look like a spider's web
* veins, for instance, are actually small capillaries commonly found on the face or legs.
* view HTML code as a means of describing the structure of information.
* weave webs to catch passing insects.
* work only for themselves, but bees work for others
  - overtime feeding on harmful insects
+ Brown recluse spider, Description, Appearance
  * Male and female brown recluses can be identified once the spider has molted several times. Spiders have a set of appendages on their faces called pedipalps. The pedipalps on the male have much larger ends than the ones on females. These fattened pedipalps serve as the sex organs for the male. The female has her sex organs on the underside of her body. This is perhaps the only way to easily tell a male from a female. Scientists who study brown recluses and their relatives can even identify relatives of the brown recluse by studying the shapes of the sex organs.
+ Ear: sensory system
  * The 'ear' is the part of the body that lets people hear. Some animals, like people and most vertebrates, have two ears, but some animals do not hear through ears. Spiders have small hairs on their legs that they can hear with.
+ Evolution of the eye: Eye :: Evolutionary biology
  * A jumping spider. Spiders have a number of eyes.
+ Silk: Fibers :: Cloth
+ Spider web: Arachnids
  * A 'spider web' is a sticky net that spiders make from silk to trap their prey. When insects fly or crawl into the web, they get stuck and the spider eats them. Most spider webs are very thin, but are also very strong. Different kinds of spiders make different types of webs. Spiders make different webs in different places to trap many kinds of prey.
+ Spider, Anatomy, Spider eyes and other senses
  * Spiders and other arthropods have modified their cuticles into elaborate arrays of sensors. Various sensors, mostly bristles, respond to touch, from strong contact to very weak air currents. Chemical sensors provide equivalents of taste and smell. Spiders also have in the joints of their limbs sensors that detect forces and vibrations. In web-building spiders all these mechanical and chemical sensors are more important than the eyes, while the eyes are most important to spiders that hunt actively. Like most arthropods, spiders lack balance sensors, and rely on their eyes to tell them which way is up.
+ Spider, Behaviour, Methods of catching prey
  * Most spiders are predators, they capture prey. But spiders use very many different ways of catching things
  - Some spiders are not predators
  * Young spiders of several families feed on plant nectar. Studies have shown that they do this for long periods. They also clean themselves regularly while feeding. These spiders also prefer sugar solutions to plain water, which shows that they are looking for nutrients. Many spiders are nocturnal, they are most active during the night. The extent of nectar consumption by spiders may therefore have been under-estimated. Nectar contains amino acids, lipids, vitamins and minerals in addition to sugars. Studies have shown that other spider species live longer when nectar is available. Feeding on nectar also avoids the risks of struggles with prey, and the costs of producing venom and digestive enzymes
  - Reproduction and life cycle
  * Spiders reproduce sexually and fertilization is internal but indirect. In other words the sperm is not inserted into the female's body by the male's genitals but by an intermediate stage. Instead, they spin small sperm webs on to which they ejaculate and then transfer the sperm to structures on the tips of their pedipalps
+ Spinneret
  * A 'spinneret' is the part of a spider's body that makes its silk. Spiders have one, two, or three pairs of spinnerets. The spinnerets are usually close together.
+ Spiracle: Insects