It is Platypus.
Feathers
The feature of an animal is how it looks like. like the dog it has a tail, two ears, ... ETC..... so feature is how the animal looks like
birds are arboreal
Birds are warm blooded animals...
birds can fly because they have such small, light bones in their wings.
No. They are birds. Birds and mammals are separate classes of animal.
No. They are birds. Birds and mammals are separate classes of animal.
Yep! Bluebirds are birds and birds are animals.
a lightweight skeleton
Birds.
Birds
what feature you have to be more specific