### animal | arthropod | spider:

Black spider
* Most black spiders go through phases.
* Most black spiders prey on insects
* Some black spiders belong to families

### animal | arthropod | spider:

Black widow
* Most black widows live only one year, but they can live up to three years.
* are by far the most common poisonous spider bite in the United States
  - famous for the colored, hourglass-shaped mark on their abdomens
  - identified by red hourglass marking on the underside of their abdomens
  - nocturnal and spin webs during daytime
* are shiny black in color
  - with a red hourglass mark on the belly
* are shy and like dark places
  - in nature
  - the largest of the irregular web-weaving spiders
  - tiny spiders that live all over the U.S. and throughout the world
* bite humans that contact their web.
* eat insects that become caught in their webs.
* feed on insects, centipedes and other spiders.
* have shiny black or brown bodies with a red hourglass on underbelly.
* inhabit dark corners and spin loose, random webs.
* inject a neuro toxin that can cause severe muscle spasms.
* mating occurs in springtime into early summer.
* mature in two to four months.
* process their food outside of their bodies.
* produce messy, irregular webs.
* spin a large web where the female suspends a cocoon that can contain hundreds of eggs.
* start out life as small white spiders with patches of yellow.

Brown spider
* Most brown spiders have structures
  - occur in regions
* Some brown spiders bite humans
  - have reputations

Camel spider
* Some camel spiders have reputations.
* Some camel spiders share ancestors
  - common ancestors
* Some camel spiders share same ancestors
* eat or chew on people while they sleep.

Cellar spider
* Most cellar spiders have eyes
  - fangs
  - glands
  - legs
* Most cellar spiders have long legs
  - thin legs
  - venom glands
* Some cellar spiders avoid predators
  - have brown stripes, or chevron marking on the ventral side of their body
  - look like adults
* are tan or gray in color.
* can be a nuisance around homes and businesses, despite their harmless nature.
* do have short fangs, termed uncate by spider experts.

### animal | arthropod | spider:

Crab spider
* Most crab spiders have eyes.
* Some crab spiders are yellow or white and sit up on flowers where they wait for prey.
  * are hunters and ambushers. Some species sit on or among flowers, bark, fruit or leaves where they grab visiting insects. Platnick, Norman I. 2010. American Museum of Natural History'.
  * Some species are disguised as birds' droppings resting on a leaf. Even at a close range, it is difficult to tell the difference. Crab spiders live in rainforests all over the world. They get their name from the way they scuttle around, like small crabs
  - able to walk backwards and sideways as well as forwards
* can change to yellow, pink or white to match the flowers where they hunt for insects.
* can walk forward, backward, and sideways just like a crab
  - sideways and backwards like crabs
* catch their prey by ambush.
  - their legs directed forwards, so they resemble crabs
  - two pairs of legs projecting forward
* lurk in flowers ambushing unlucky insects.
* resemble crabs and walk backwards and sideways like crabs.
* spin no webs.
* wait camouflaged simply as a part of the plant
  - for insects to approach the flower
  - in ambush for unsuspecting insects to come by

Different spider
* have different habitats.
* weave different-shaped webs.

Female spider
* Some female spiders are so much bigger than the males that they sometimes eat their mates.
* are induced to build nests on bamboo frames which are then used as fishing nets
  - often much bigger than males
  - usually larger than the males and only mate once
* can carry the egg sac wherever they go or deposit it in a web.
* devour their mates after fertilization.
* wrap their eggs in a silken spun sac.