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