### animal | vertebrate | mammal:

Walrus
* All walrus belong in the order called pinnipeds.
* Most walruses appear in sea.
* Most walruses are hunted at sea
  - inside water
  - located in water
  - benefit from development
  - come from sea
* Most walruses consume food
  - organisms
  - die in sea
* Most walruses eat fish
  - mollusks
  - emit sound
  - establish dominance
  - feature powerful jaws
* Most walruses feed on animals
  - dwell animals
  - find their meals near the sea floor
  - gain weight
* Most walruses get food
  - has-part skin
* Most walruses have cm weight
  - color vision
  - diets
  - layers
  - limbs
  - natural predators
  - teeth
  - inhabit regions
* Most walruses live in areas
  - coastal areas
  - frigid waters near the Arctic Circle
  - habitats
  - northern sea
* Most walruses live on regions
  - tropical regions
  - migrate in winter
* Most walruses prefer food
  - share water
  - swim in sea
* Most walruses use flippers
  - long tusks
  - prominent tusks
  - right flippers
  - weigh pounds
* Some walruses are blue-eyed.
* Some walruses are distinguished from mammals
  - other mammals
  - compete for territory
* Some walruses feed on clams
* Some walruses have air sacs
  - buds
* Some walruses have large air sacs
  - mates
  - kill and eat seals and seabirds
* Some walruses live in Alaska
  - a herd while others live alone
  - make sound
  - move snouts
  - occur in sea
* Some walruses reach maturity
  - sexual maturity
* Some walruses rely on ice
  - sea ice
  - squids
  - whiskers
  - see in color
  - stay with mothers
* Some walruses use ice
* also have a cool way of uncovering their food
  - use the tusks for dragging themselves out of the water on the shore
* are among the most gregarious of animals
  - vocal of the pinnipeds
  - carnivorous animals that only hunt and eat other animals in order to survive
  - cinnamon brown in color
  - dark when they are young and become progressively lighter with age
  - distinctive for their two long tusks
* are extremely important to humans
  - noisy and social, cramming onto beaches and ice floes by the thousands
  - famous for their tusks, which are actually big canine teeth
  - gregarious throughout the year
  - highly social animals that travel and rest in large groups
  - known for their large tusks
  - marine mammals
  - naturally skittish animals, unused to being closely packed together
  - one of the largest pinnipeds
  - placental mammals
  - polygynous, meaning that one male usually mates with many females
  - preyed upon by polar bears, killer whales, and man
  - sea mammals
  - social and spend most of their time with other walruses of the same sex
  - strong bodied and have a very thick, tough hide that can be an inch thick
* are the gentle giants of the Arctic
  - largest pinnipeds in arctic and subarctic seas
* are very big , even compared to big male sea lions
  - fat, but for good reason
  - social animals and congregate in large numbers
  - vocal mammals
* avoid mainland shores, where they can e attacked by land predators like wolves and bears.
* belong in the Arctic, with the polar bears.
* can change colour depending on how warm they are
  - live for forty years in the wild
  - move the fastest while in the water
  - remain submerged for as long as ten minutes
  - walk on all four legs when they are on land
* catch fish.
* characterise the North Polar regions.
* climb up on ice or beaches to sleep or to rest.
  - together in large groups on land during breeding season
* communicate through auditory and visual displays
  - sound, sight, touch, and smell
* crack mollusk shells between their flippers and then eat the soft part.
* differ from seals in that they are larger and have large tusks.
* dig for clams on the sea bottom with their long tusks
  - large holes in the mud with their whiskers
* do have hair, which they gradually shed and replace over the summer months.
* eat clams, crabs, snails, cabbage and worms
* feature jaws
* feed almost exclusively on clams
  - exclusively on shellfish
  - their young with milk, just as humans do
* go into diving mode and stop breathing when unconscious.
* haul out in groups of thousands during the summer months at Round Island, Alaska
  - herds in close contact with one another
  - on ice to rest, molt and bear their young
  - to rest and bear their young
* have big tusks to eat fish
  - few predators other than the occasional killer whale or brave polar bear
  - hind limbs
* have internal ears
  - fertilization with direct development
  - ivory tusks
  - large, flabby bodies covered in brown or pink skin
* have lots of things similar to true seals and eared seals
  - whiskers and they're very fat
  - short fur in most areas of their bodies except their appendages
  - small eyes that are adapted to the cold environment
  - thick skin that ranges from a light grey to a yellowish brown color
  - triangular-shaped hind flippers
  - tusks for digging, mating, and fighting
  - unique lungs for breathing
  - various behaviors of reproduction, depending on whether they are male or female
  - vocal cords
* includes brains
  - breasts
  - cell membranes
  - cells
  - chest cavities
  - chests
  - corpi
  - cytoplasm
  - faces
  - heads
  - nuclei
  - pedal extremities
  - piluses
  - plasma membranes
  - rib cages
  - sections
  - skulls
  - sterna
  - vacuoles
  - vertebrate feet
* inhabit areas in the Arctic that are largely made up of ice
  - the Arctic seas and ice floes
* is an aquatic mammal
* life in water.
* like to swim and look for food.
* live at the North Atlantic and North Pacific Oceans.
* live in a hierarchal system based on age, body size, and tusk length
  - large colonies
  - one of the harshest environments on Earth
* live on beaches near shallow waters at the edge of the polar ice in the Arctic
  - only in frigid waters
* look like huge seals but have long whiskers and big tusks.
* love to eat.
* lying on the mainland are much more numerous than before, due to the lack of off-shore ice.
* mainly feed on small invertebrates, most commonly consuming bivalve mollusks.
* mate during breed seasons
  - north during the summer and south in the winter
* occasionally eat bigger animals such as seals and some seabirds.
* occupy a nearly circumpolar region of the Arctic.
* open mouths.
* prefer areas with shallow water so they can easily access food
  - molluscs - mainly bivalves such as clams
  - shallow shelf regions, foraging mainly on the seabed, often sea ice platforms
  - to eat bivalve mollusks such as clams
* produce offspring most of their lives
  - sounds both above and below water
* sacrifice their lives for their young.
* seek out physical contact with other walruses
  - physical contact with each other
* seem to prefer being in groups.
* segregate their herds - males, females and females with calves.
* spend about two-thirds of their lives in the water
  - most of their time in herds
  - the majority of their lives in the water, but they are highly dependent on ice
  - two thirds of their lives in and out of the water, feeding and resting on sea ice
* suck out the soft parts of clams and snails leaving the shells to fall to the sea floor.
* turn pink when their circulation increases to diffuse excess body heat.
* use alternating strokes of the hind flippers to propel themselves in water
  - the ice as a place to rest
  - their tusks to display their dominance
* use their whiskers to comb mud and sand when looking for food
  - cradle their eggs
  - help identify food or any other small objects
* usually find food by brushing the sea-bottom with their broad, flat muzzles
  - have four nipples
  - migrate by swimming, but they also catch a ride on an ice floe
* walk with four flippers over ice and snow.
+ Walrus, Description: Pinnipeds
  * Walruses have lots of things similar to true seals and eared seals. Like true seals, they just have a hole for an ear - not ear flaps. Like eared seals, they can rotate their back flippers forward to walk on land. Like both true seals and eared seals, they are very good swimmers and divers. However, walruses do have some features that neither true seals nor eared seals have.
  * Walruses are very big, even compared to big male sea lions. When they are all grown up, they can weigh more than 3,000 pounds. The walruses that live in the Atlantic Ocean are a little smaller than the ones in the Pacific Ocean. Both kinds like to stay in the cold north. With all their blubber, which can be as much as six inches thick, they are very comfortable in icy water
  * Walruses can change colour depending on how warm they are. They are usually different kinds of brown, but as they get warmer, their skin can turn pink. This is because as they get warmer, blood rushes to the skin to try to cool it