Mammals
Birds
Reptiles
Amphibians
Fish
100

All baby mammals are fed this by their mothers.

What is milk?

100

These are what penguins use to swim, but most birds use them to take to the skies.

What are wings?

100

This is what covers all reptiles' skin.

What are scales?

100

Amphibians start their life living here.

Where is the water?

100

This is what fish use to breathe, and it covers their skin.

What are gills?

200

This covers all mammals' skin.

What is fur or hair?

200

This is what covers all birds' skin.

What are feathers?

200

Amphibians start their lives as these.

What are tadpoles?

200

This is what sharks' teeth are made of.

What is cartilage?

300

This type of mammal has a pouch, and includes Tasmanian Devils and Sugar Gliders.

What is a marsupial?

300

This is what covers all amphibians' skin.

What is nothing?

400

This aquatic mammal is considered the second smartest animal in the world.

What is a dolphin?

500

This category, containing only two speices, are the only mammals not to give live birth.

What are monotremes? (platypi and echindas)

500

This lesser-known major group of amphibians are often mistaken for small snakes or large worms.

What are caecillians?