Post on 12-Jan-2016
Walruses By Ana Pena
General Characteristics ● They have:
o Flipperso A broad head o Short muzzleo Small eyeso Tuskso Whiskers
● They are cinnamon brown in color● They are able to turn their hind flippers
forward to aid in movement on land
General Characteristics Cont.● Their front flippers are large and each
has five digits● Males have special air sacs that are
used to make a bell-like sound
Reproduction● Sexual reproduction● Males:
o Sexually mature at age 8o Choose not to mate until they are about 15
years of age● Females:
o Sexually mature between 5 and 6o Generally won’t do so until they are about 10
years of age
Reproduction Cont.● They make a variety of noises which
have a dual purpose:o They convey to other males that wish to mate
with a certain femaleo They are a way to get the attention of a
certain female
Feeding- Prey● Prey:
o Molluscs-mainly bivalves such as clamso Wormso Gastropodso Cephalopodso Crustaceanso Sea cucumbers o And sometimes fishes such as polar cod
Relations- Predators● Killer whales● Polar bears
Adaptations● Under its thick skin, it has a layer of
blubber.o provides insulation in the freezing water and
also protects it from the cold wind as it lies out on the ice.
● The bottom of the flippers are bumpy so it can grip the ice.
Fun Facts● There are two subspecies of walruses.
The Atlantic Walrus and the Pacific Walrus
● They have 450 whiskers● Their whiskers are very sensitive and
are used to help locate food ● They can hold their breath for up to 30
minutes● They are endangered
Videohttps://www.youtube.com/watch?v=r6_85KecQNg