Alaskan Ecosystems Audio

What unique skill do sea otters have that is rare among mammals?

• They can sing.

• They can use tools.

• They can change colors.

• They can fly.

Who discovered the decline in the sea otter population?

• Dr. Sarah Connor

• Dr. John Smith

• Dr. James Estes

• Dr. Jane Goodall

What unexpected predator started eating sea otters?

• Orcas

• Dolphins

• Seals

• Sharks

What is the main food source for orcas that declined, leading them to prey on otters?

• Sea turtles

• Crabs

• Jellyfish

• Pinnipeds

What happens to the kelp forest ecosystem when otters disappear?

• It gets deforested by sea urchins.

• It becomes a desert.

• It turns into a coral reef.

• It flourishes.