Its fur
Bats can fly.
Hair and milk.
Reptiles are cold blooded whilst mammals are warm blooded. Mammals have also developed fur.
Generally not something they do. Are you absolutely positive he is a boy.
Mammals can give birth,where few animals cant
It lays its young in eggs.
No. Platypi are different from other mammals because they lay eggs instead of giving birth to live young.
Dolphins, human beings, and chimpanzees are all mammals who have unusually high intelligence, compared to most other mammals. We are smart.
A bad habit (for the rabbit) is the chewing of electrical wires. They must be hidden from rabbits or coated with something that makes them unappealing to the rabbit. (Tabasco Sauce , red pepper)
Jessica Rabbit loves Roger Rabbit because he makes her laugh .
Mammals have hair and nurse their young. That's what makes them mammals.
Chips are not mammals -they are pieces of potato.