articles

The three types of mammals are the marsupials, the monotremes and the placental mammals. These groups are defined by the way in which their babies develop. More »

www.reference.com Pets & Animals Mammals Marine Mammals

Although most mammals are terrestrial, many species inhabit the world?????????s oceans and seas, including seals, otters, whales and dolphins. As air-breathing mammals, these creatures must return to the water's surface ... More »

www.reference.com Pets & Animals Mammals Marine Mammals

Birds are not mammals. They don't have fur, and they don't nurse their young with milk as mammals do; however, birds share some traits with mammals. They are warm blooded and can eat a wide variety of food, from fruits a... More »

www.reference.com Pets & Animals Birds
similar articles

The three major groups of mammals are monotremes, which lay external eggs; marsupials, which carry their babies in a pouch; and placental mammals, which carry and gestate their fetuses internally. Humans fall into the ca... More »

www.reference.com Pets & Animals Mammals

Although most mammals are terrestrial, many species inhabit the world’s oceans and seas, including seals, otters, whales and dolphins. As air-breathing mammals, these creatures must return to the water's surface often to... More »

www.reference.com Pets & Animals Mammals Marine Mammals

Penguins are not mammals, even though they are warm-blooded animals. Penguins are one of only a few species of flightless birds left in the world. Many people mistakenly believe penguins have fur instead of feathers beca... More »

www.reference.com Pets & Animals Mammals Marine Mammals

Whales have hair, as all species of whales are aquatic mammals. Instead of having scales, like most other marine animals, whales have a fine layer of hair over their bodies. More »

www.reference.com Pets & Animals Mammals Marine Mammals