charterics
What gland do mammals use to feed their young?
Mammary
What is a trait unique to sea otters?
No blubber
What is a walruses favorite food
Clams
seal- short fat
Sea lion - long flexible
What is the largest baleen whale and toothed whale ?
Blue whale and Sperm Whale
How many bone does a mammals lower jaw consist of?
1 Bone
Where can you find a sea otter ?
Pacific Ocean
where are they located?
Strictly in the arctic ocean
compare a sealions flippers to a seals
sea lion - hind flippers rotate no fur
Seal - rear flippers can't move forward have fur
How many blowholes do a baleen and toothed whale have?
baleen have 2 and toothed whales have 1
How many ear bone to mammals have in their ear?
3 bones
What were Sea otter hunted for ?
Dense fur
What are the tusks used for? (1 of 3)
1. defense
2. anchoring in to ice
3. digging for mollusks
Compare a seals ear to a sea lions ear
Seals - No ear flap
Sea Lion - external ear flap
What is a melon?
Large fatty tissue the contains oil
What is a diaphragm?
A thin muscle that separates the abdominal cavity
Sea otters do what that shows intelligence?
Use tools
what are the whiskers called?
vivrissae
What do they eat?
Fish and Squid
What is breaching
A show of dominance; loudly lead in the air and loudly crash on the surface
What are the 5 main Chartericts?
1. Worm blooded
2. 4 chambered heart
3. Fur/ hair
4. Live birth
5. Mammary glands
How much to sea otters eat?
20% - 30% of body weight daily
What sub group do walruses belong to?
Pinnipeds
What is the propose of their blubber?
Insulation and Buoyancy
What is baleen?
Flexible fibrous plates that hang from the upper jaw