What is it?
It's skin.
What is it?
It's fur.
What are they?
They are scales.
What are they?
They are feathers.
What are they?
They are amphibians.
What are they?
They are gills.
What are they?
They are wings.
Mammal or amphibian?
Mammal
What are they?
They are eggs.
What are they?
They are mammals.