Both birds and mammals care for their young.
The common ancestor of mammals and birds was a reptile.
Of course not ...no birds are mammals !!!!!!!!!!!No, they are birds.
They are all animals. That is about it.
yes
No. Both mammals and birds "inherited jaws" from a common reptilian ancestor which ultimately originated in an early fish.
yes, both are warm blooded and both use sexual reproduction to produce.
Birds have a 4-chambered heart, a characteristic in common with mammals.
Sexual reproduction by union of male and female gamets.
reptiles and amphibians have the most in common
No, they are birds.
No. Birds are not mammals.
Owls lay eggs. Since rats are mammals and not birds, they have live young.