Mammals
Birds
Reptiles & Amphibians
100

Why are elephants' ears so large?

So they can fan themselves to cool off
100

Why do birds have hollow bones?

It makes the birds lighter, so it is easier to fly

100

How do frogs project their croaks?

By expanding their throats (vocal sacs)

200

Why do clouded leopards have long tails?

To help with balance

200

Why do cranes have long legs?

So they can stand above the water and find their prey

200

Why do reptiles lay in the sun?

To warm up and regain energy, because they are cold-blooded

300

Why are naked mole rats blind?

Since they live underground, mole rats have adapted to no longer need to use their eyesight

300

Why do peacocks have such fancy tailfeathers?

To impress peahens and scare off potential predators

300

What is the purpose of the bright colors on poison dart frogs? 

To warn other animals that poison dart frogs are dangerous

400

Why are lions' tongues so rough?

To help tear meat off of the bones of their prey

400

What allows owls to fly silently?

Specialized feathers on their wings

400

What is the difference between a turtle and a tortoise?

Turtles often live in and around water, while tortoises live only on land

500

How many teeth do elephants have?

4

500

Why do we call bald eagles bald?

When you look up at a soaring bald eagle, their white feathers blend in with the sky and make it look like they don't have a head

500

Are snakes with triangular heads venomous or nonvenomous?

Venomous