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Birds are warm-blooded like mammals and lay eggs as some mammals do. But mammals are characterized as nursing their young, which no birds do (although some male penguins have a way of feeding newborns).
Birds are also different from most mammals in these ways:
1) Birds have wings, although some can't fly (penguins, emus, ostriches)
2) They have feathers to aid with flying and waterproofing. Most mammals have fur or hair all over their body.
3) They lay eggs which are fertilized inside of the females (the eggs come out in the same form whether fertilized or not).
4) They have hollow bones whereas mammals have filled bones.
5) Most have a beak or a bill of some kind.
6) The shape of the body: most often a teardrop-shaped body and a long neck with two legs. Most mammals have four limbs with paws or feet to walk on.
7) Most birds have claws and a three-toed foot with the extra toe at the back.
What else can I help you with?
What birds are considered mammals?
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.
Are canary birds mammals?
No. Canaries are birds, which are a class of animals all their own distinct from mammals.
How do mammals differ from birds and what adaptation's do they share?
Adaptations that birds and mammals share include the fact that they are both warm blooded, they are both vertebrates, and they both have four chambered hearts. Unlike mammals, birds are covered in feathers and all birds lay eggs. Unlike birds, mammals are covered in hair, produce milk for their young, and nearly all mammals give birth to live young (except a few species that lay eggs).
Are goldfinches omnivores?
No. Finches are not mammals - they are birds. The differences between birds and mammals are: Birds have feathers while mammals have fur, hair or skin Birds lay eggs whilst mammals (with the exception of the monotremes) bear live young Birds do not feed their young on mothers' milk like all mammals do
Is the grebes carnivore?
No. Grebes are not mammals - they are birds. The differences between birds and mammals are:Birds have feathers while mammals have fur, hair or skinBirds lay eggs whilst mammals (with the exception of the monotremes) bear live youngBirds do not feed their young on mothers' milk like all mammals do
compare and contrast the way birds and mammals reproduce?
birds are different than mammals
Do birds and mammals have same lung design?
No. Birds and mammals have radically different lung designs. Birds have a far more complex, but more efficient design than mammals do.
Are birds of paradise mammals?
Of course not ...no birds are mammals !!!!!!!!!!!No, they are birds.
Is any bird a mammal?
No, there are no birds that are mammals. These are two completely different classes of the animal kingdom. Birds are class aves, mammals are class Mammalia.
Why do birds eat smaller birds?
Some birds prey on other birds because they are adapted and evolved to do so. This is no different than some mammals (such as cats and foxes) eating smaller mammals (such as mice and rats).
Are eagles mammals?
No, they are birds.
Are birds the only mammals with feathers?
No. Birds are not mammals.
How are dolphins and penguins different?
Dolphins are mammals, while penguins are birds.
How are bats ans owls different?
bats are mammals owls are birds
Are cassowary birds mammals?
No. They are birds. Birds and mammals are separate classes of animal.
Are cassowaries mammals?
No. They are birds. Birds and mammals are separate classes of animal.
Are raccoons birds?
Raccoons are not birds. Raccoons are mammals.
