A vertebrate is Associate in Nursing animal that feeds its babies with milk once it's young. There square measure over four,500 varieties of mammals. several of the foremost common animals we all know square measure mammals, as an example, dogs, cats, horses, cows, however exotic animals like kangaroos, giraffes, elephants and anteaters belong to the current cluster, too. Humans are mammals.

Mammals board all regions and climates. They go on the bottom, in trees or underground. Polar bears, Greenland caribou and seals square measure mammals that board the Arctic regions. Others, like camels or kangaroos like the world’s dry areas. Seals and whales square measure mammals that swim within the oceans; bonkers square measure the sole mammals that may fly.

Mammals have 5 options that create them completely different from different animals:

Female mammals manufacture milk and feed their babies with it.
Only mammals have hair or hair-like skin. All mammals have hair a minimum of your time in their lives.
Mammals square measure homothermic. Their blood heat continually stays identical and doesn't modification with the skin temperature.
Most mammals have a bigger and well-developed brain. they're a lot of intelligent than different animals.
Mammals shield their babies quite different animals. They prepare them for future life.
People have afraid mammals for ages. They Ate their food and created garments out of their skins. Thousands of years past wild mammals were domesticated and gave personalities milk, wool and different merchandise. Some mammals, like elephants and camels square measure still accustomed transport merchandise. In poorer countries farmers use cows or oxen, to plough fields.

Today some mammals square measure afraid illicitly. Whales square measure killed as a result of folks wish their meat and oil, elephants square measure killed for the ivory of their tusks.

Mammals square measure typically unbroken as pets. Among them square measure cats, dogs, rabbits or guinea pigs.

Mammals square measure helpful to folks in several different ways that. Some facilitate plants grow and eat harmful insects. Others eat weeds and stop them from spreading too so much. The waste of mammals is employed as fertilizers that improve the standard of soil.