Walrus and Seal Adaptations

The video tutorial explores the suborder Pinnipedia, which includes seals, sea lions, and walruses. It discusses their global distribution, habitats, and key differences, such as ear flaps and flipper rotation. Walruses are highlighted for their tusks and role as a keystone species in the Arctic. The video also covers local pinnipeds in California, including the California sea lion, harbor seal, and northern elephant seal.

Which regions are home to both seals and sea lions?

• Only temperate regions

• Only the Arctic

• Only tropical regions

• Worldwide, including Arctic and tropical regions

What is a key difference between seals and sea lions regarding their ears?

• Seals have larger ears

• Sea lions have external ear flaps

• Sea lions have no ears

• Seals have external ear flaps

How do seals primarily move in water?

• By jumping

• By rotating their body

• Using their back flippers

• Using their front flippers

What unique feature do walruses have that distinguishes them from seals and sea lions?

• Tusks

• Long tails

• Horns

• Feathers

Why are walruses considered a keystone species in the Arctic?

• They have the thickest blubber

• They migrate long distances

• They control invertebrate populations

• They are the largest animals

What is the primary function of a walrus's tusks?

• To attract prey

• To help them swim faster

• To store food

• To dig holes in the ice

How do walruses use their whiskers?

• To detect predators

• To find food under the sand

• To balance on ice

• To communicate with each other

What adaptation allows walruses to sleep in water?

• Their sensitive whiskers

• Their thick blubber

• Their air sack in the throat

• Their long tusks

Which pinniped is found year-round in California?

• Arctic seal

• Walrus

• California sea lion

• Northern elephant seal

During which season can you see northern elephant seals in Southern California?

• Summer

• Winter

• Autumn

• Spring