Means feather footed Seals, Sea Lions and Walrus

8/17/20152 Marine Mammals Cetaceans Toothed Whales Baleen Whales DolphinsPorpoisesEndangeredSireniaManateeDugong Steller’s Sea Cow Pinnipeds True Seals Fur Seals Sea Lions Walrus Mustelidae Sea Otters River Otters Exxon Valdez Oil Spill Polar Bears Introduction

8/17/20153 General Characteristics They are carnivores They feed in the water They rest and they give birth on land.

8/17/20154 Differences SEALSSEA LIONS WALRUS Found worldwide Pacific OceanArctic Ocean No eternal ears eternal ears external ears Crawl on land walk quadripedally walk quadripedally Examples in our area; Harbor sealnoneAncient fossils

8/17/20155 True Seals Walrus Callorhinus ursinus (northern fur seal) Odobenus rosmarus (walrus) Sea Lions and Fur Seals Phoca vitulina (harbor seal) The Pinnipeds

True Seals No External Ear Flaps (Earless)

8/17/20157 True Seals True seals have no external ears like those found on eared seals. True seals have no external ears like those found on eared seals. Instead, only a small ear opening behind the eyes is visible.

8/17/20158 How they swim The furred hind flippers of true seals are shorter than those of the fur seals and sea lions, and extend behind their body to provide propulsion when swimming. The furred hind flippers of true seals are shorter than those of the fur seals and sea lions, and extend behind their body to provide propulsion when swimming. The Crabeater Seal

8/17/20159 Color Variation The pups of most species have fluffy coats of a light color.

8/17/ Elephant Seal The short, furry front flippers act mainly as rudders when the seals are swimming and help with movement on land or ice. The short, furry front flippers act mainly as rudders when the seals are swimming and help with movement on land or ice.

8/17/ Leopard seal True seals have hair but rely on a heavy layer of blubber to keep them warm. True seals have hair but rely on a heavy layer of blubber to keep them warm.

8/17/ Leopard Seal Antarctic seals include the voracious leopard seal, which feeds on penguins and other sea birds.

8/17/ Ringed Seal Most common of seals Found in Arctic seas Few live in the Baltic Sea Smallest species of seal Skin is light to dark grey with dark spots ringed with white.

Fur Seals Ear Flaps

8/17/ Fur Seals Most sought after seal because of its soft coat US annual catch of fur seals amounts to over $3.5 million

8/17/ Reproduction Cows arrive at rookeries in July, immediately join a harem and bear their young. Cows mate again weeks after the birth of the pup

8/17/ Fur Seals 1911 North Pacific Fur Convention Japan, Russia, Canada, and the US set a limit to the number of seals that can be harvested each year North Pacific Fur Convention Japan, Russia, Canada, and the US set a limit to the number of seals that can be harvested each year.Hazards Thousands are killed annually at their breeding grounds for fur. Sharks Killer whales Parasitic round worms Only Russia and the US can harvest 30,000 a year.

8/17/ Fur Seals Russia and the US give 15% of their harvest to Japan of their harvest to Japan and 15% to Canada US sealing is conducted by the government. the government.

8/17/ Fur Seals The money is deposited in the US Treasury 70% of money is returned to the Alaskan gov’t. 30% goes to the National Marine Fisheries Service

Sea Lions

8/17/ Sea Lion Sea Lions are mammals, or warm blooded animals which give birth, nurse their offspring, and must breathe air. Sea Lions are also pinnipeds (feather-footed ) meaning they have finlike members for propulsion. They can walk on their four web like flippers.

8/17/ Sea Lion Roars Like a Lion This marine mammal makes a roaring noise (hence its name), barks, and honks

8/17/ Sea Lion Habitats Sea lion are highly gregarious on land and use the same sites for breeding, and resting year after year.

8/17/ Sea Lion Range: North Pacific coastal waters, Alaska to Russia In the breeding season, the males form territories on rocky, semi- exposed areas and beaches. California Sea Lions Distribution

8/17/ Sea Lion Population In 1961 About 270,000 In 1999 About 110,000 They are of no commercial value. Steller sea lions have suffered a mysterious population decline of about two-thirds since the 1960s. Possible culprits: pollution, disease, and competition from commercial fishing.

Walrus Tooth Walker

8/17/ Tooth Walker Odobenus comes from the Greek "tooth walker," and refers to the walruses' method of pulling themselves up onto the ice with their long tusks.

8/17/ Walrus The walrus lives in the Arctic. Despite this distant range, its long tusks, deeply wrinkled skin, and bristly mustache make the walrus familiar to all.

8/17/ Walrus description Flat flippers, instead of feet enable the walrus to swim. The forelimbs serve as rudders. Out of the water the walrus can walk almost upright on all fours by turning its back flippers forward. When ice spreads and thickens into pack ice in the winter, walruses usually head south. Walruses' blubber (fat) may be as much as 6 inches thick.

8/17/ Tooth Walker Global Distribution

8/17/ Tooth Walker Pacific Walrus Distribution

8/17/ WALRUS & MAN WALRUS & MAN Eskimos have hunted the walrus for hundreds of years. Traditionally they hunted using strong fishing lines. Now they use high powered rifles. They can kill many more walruses. In the last 300 years commercial hunters caught so many walruses that the species has become almost extinct.

8/17/ Walrus Status There are now about 250,000 walruses in the Bering sea, but extinction is still a possibility because of their slow breeding rate and the fragile environment that they live in. Even though commercial hunting is no longer allowed, the walrus is still endangered.

8/17/ THE END