1. Order Pinnipedia
Seals and sea lions

2. Classification Kingdom: Animalia Phylum Chordata Class Mammalia
Subphylum Vertebrata
Class Mammalia
Order Pinnipedia
Seals, sea lions,
walruses

3. Classification (cont)
3 Families
Phocidae - seals
Otariidae – sea lions
Odobenidae - walrus

4. Seals vs Sea Lions Seal Sea Lion -ear internal -ear external
-short neck -long neck
-waddles/bounces -walks

5. General Characteristics
Large eyes
Streamlined body
4 swimming flippers
Most species maintain harem
Sexually dimorphic

6. Pinnipeds Need to rest/breed on land
Carnivores – eat mostly fish and squid
Most temperate – polar waters
Thick blubber

7. Stellar Sea Lion North Pacific Coasts Bulls establish territory
rookeries

8. Is the Stellar sea lion a phocid, otarrid, or odobenid?
[Default]
[MC Any]
[MC All]

9. Fur Seal Many species Hunted for fur Aggressive Smaller size
Actually a sea lion

10. Which family do fur seals belong to?
Phocidae
Otarridae
Odobenidae
[Default]
[MC Any]
[MC All]

11. California Sea Lion Most common Extremely fast Carnivore – eats fish
Maintains harem

12. Elephant Seal 2 species: Northern and Southern Sub polar and polar
Males maintain harem
Hunted for oil
Largest species

13. Leopard Seal Antarctic Eat penguins, seals Known for spotted coat
Large size – 15 ft

14. Which Family do leopard seals belong to?
Phocidae
Otarridae
Odobenidae
[Default]
[MC Any]
[MC All]

15. Weddell Seal Antarctic Carnivore – small fish/squid
Use teeth to keep ice open
Very vocal

16. Hawaiian Monk Seal Endangered! Warm water species
Endemic to Hawaiian Islands
Feed on small fish and invertebrates
Travel out to sea for one month at a time

17. Walrus Arctic Whiskers used to feel for food in mud Use tusks to
Eat bottom invertebrates
Use tusks to
open breathing holes
Haul out of water
Dominance fights

18. Which Family do walruses belong to?
Phocidae
Otarridae
Odobenidae
[Default]
[MC Any]
[MC All]