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Pinnipeds and Small Mammals
Pinnipeds and Small Mammals
January 2, 2020
by
vanarsdale_mark
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1.
Elephant seals come to the beaches of California to (select all correct answers)
Rest when they have been swimming too much
Mating and Giving birth
Molting (shedding their fur)
Avoiding predators like great white sharks
2.
Select all of the appropriate characteristics of Otariids
Commonly referred to as sea lions and fur seals
Can walk on their hind flippers
Have external ears
Many species have large sexual dimorphism, large differences between males and females
Swim with propulsion from the movement of their hind flippers
3.
Sea otters are remarkable animals for several reasons, including the fact that they
eat other species of marine mammals
are keystone species, whose position in food chains is crucial in maintaining the ecological health of a kelp forest
are the deepest diving species of marine mammal
are the largest species of marine mammal
4.
This is
a sea lion
a walrus
a manatee
a member of the family Phocidea
5.
Which of the following traits can be found amongst all true seals (phocids)
No external ears
They can walk on their hind flippers
Large sexual dimorphism, large differences between males and females
Swim with propulsion from their front flippers
6.
Physically walrus
are very similar to sea lions
are very similar to true seals
show a mix of traits between Phocids and Otariids
Are smaller than most other Pinnipeds
7.
Manatee's
tails are rounded and paddle-shaped, whereas dugongs tails are fluked (triangle shaped)
are slow moving carnivores
inhabit the North Pacific
tails are fluke (triangle shaped,) whereas dugongs tails are rounded and paddle-shaped
8.
Polar bears are "of the sea" for which of the following reasons
The have wide paddle like feet and elongated necks making them good swimmers
They sometimes feed on the whale carcasses left over by Iniupiaq hunter
They are the largest of extant bear species
They den on land, but spend most of their time on the sea ice hunting
9.
Walrus primarily eat
Kelp
Clams
Algae
Fish
10.
This is
a manatee
a seal
a Walrus
from the family Otariidae
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