Giant birds: The Dodo Bird, The Elephant Bird, and the Argentavis.
birds are a whole class in themselves. birds reptiles mammals amphibians fish
Birds have a thin kind of skin underneath their feathers. Their skin is similar to mammals but much more delicate.
land mammals, fish and birds
Mammals, birds, reptiles, amphibians, and some fish have endoskeletons. An endoskeleton is an internal support structure made of bone or cartilage that provides structural support, protects internal organs, and allows for movement.
No birds are mammals. In fact, birds are of a different kind of category, called "aves". Some scientists say that this is just another branch of the reptiles, but some say birds are different.
Like the majority of Australian native mammals, the wombat is a marsupial.
An herbivore is anything that eats just plants. This includes fish, insects, birds, mammals and others.
A bat bears it's young alive, does not have feathers and does not have the high metabolic rate of a bird.
dogs, cats, birds and with the new trends, fishes
the paleozioc was the age of dinosaurs. the first small mammals first appeared in this time
All animals are cold blooded except for mammals and birds.
Birds are neither mammals, nor reptiles. They are an entirely different branch of evolution. However, they are more closesly related to reptiles, which they descended from. Their evolution from reptiles caused them to resemble mammals.