When did Diplocaulus live?

• Around the same time as modern humans

• After dinosaurs existed

• Over 250 million years ago, before dinosaurs

• During the Ice Age

What characteristic defines amphibians?

• They only live on land

• They only live in water

• They have body parts that help them live both in water and on land

• They are all extinct

How do scientists learn about animals that lived a long time ago?

• By observing them in their natural habitat

• By studying their DNA

• By looking at fossils

• By reading ancient books

What is one proposed reason for Diplocaulus's boomerang-shaped head?

• To help it breathe air on land

• To make it a speedy swimmer

• To attract mates

• To help it dig burrows

What is the scientific term for animals using bright colors and bold patterns to protect themselves?

• Camouflage

• Mimicry

• Aposematism

• Hibernation

Which type of poison dart frog is known to be the deadliest?

• Blue poison dart frog

• Golden poison dart frog

• Mimic poison frog

• Sanguine poison frog

From what source do poison dart frogs acquire their toxins?

• They produce it internally from birth.

• They absorb it from the water they drink.

• They get it from the insects they eat.

• They inherit it genetically from their parents.

What is the term for an animal that copies the appearance of a more dangerous species to protect itself?

• Camouflage

• Mimicry

• Aposematism

• Adaptation

Do some animals mimic (look or act like) other animals for protection?

• no

• yes