Mammals feed their young with milk while classes of animals don't
Mammals feed their young with milk while classes of animals don't
Mammals are the only vertebrate group which feed their young on mothers' milk.
(1) Only mammals nurse their babies on the mother's milk. (2) Only mammals have hair. (3) Mammals are warm-blooded. Birds are warm-blooded, too, but nearly all other animals are coldblooded. (4) Mammals have a larger, more well-developed brain than other animals. (5) Most mammals give their young offspring more protection and training than other animals.
The presence of a backbone (a "vertebrae") does not DEFINE a mammal because other animals also have backbones, eg reptiles, birds and fish - these animals are also "vertebrates".Mammals are mammals because they are the only animals to have fur/hair and feed their young on milk.
Yes. Mammals are the only animals that feeds milk to their young.
The most obvious way in which mammals differ from the other four classes of vertebrates is that mammals nurture their young on mothers' milk.
mammals
Mammals are those animals that nurse their young on milk. All species of mammals do that; no other kind of animal does.
The mammals and the birds
Humans are mammals, yes. Mammals are animals that have fur or hair, give birth to live young, and the females produce milk from mammary glands to feed their young.
All animals that give birth to live young are viviparous and are mammals.
mammals have hair all over their bodies, they give birth to live young, they include the largest animal ever-the blue whale