Question

What are the differences between animals belonging to the Aves group and those in the mammalian group?

Answer 1

The difference between aves and mammals are as follows:

Aves	Mammals
Aves have their body covered in feathers.	Bodies of mammals are covered with hair.
Aves lay eggs.	Mammals give birth to young ones.
The mammary glands are absent in aves	Mammals have mammary glands.
Aves have their forelimbs modified into wings.	Forelimbs in the mammals are not modified into wings.
Aves have a beak.	Mammals do not have a beak.