Mammals

Another term for the mammal is a lactating animal. Includes class vertebrates (have a backbone) and mammary glands in females. Mammals belong to warm-blooded animals or keep their body temperature, such as humans. In general, mammals bear their offspring in a way midwives or childbirth.

But there are some mammals that lay eggs, like a guppy fish and hammerhead sharks. This is because they do not deliver is not the main feature of mammals. But it is all about breastfeeding and have mammary glands in females was a central feature. Mammals have several characteristics, such as have heart with four chambers, his body covered with feathers, the tips of his ears was sharp(taper), have the sweat glands, and breathe through lungs.

Consists of 5487 mammal species from 46 orders. Known today almost 25 percent of mammal species threatened with extinction. At least 1141 species in severe decline. The population of most species are declining Asian primate species, such as elephants. It happened because of the destruction of the forests where wild elephants live. On the other hand, mammals are animals that are known to survive most of the changes in the environment so long. This is due to the varied character of this animal.

Not only spread as land animals, water, and air. Diverse in size, the smallest (2.5 to 12 centimeters) to the largest (33 meters) have so it can stay in place with various characters and weather. Starting from caves, holes, narrow places, the sea, to the desert, to prairie. Some other animals including mammals include tiger, orang utan, deer, whales, rats, sharks, rabbits, kangaroos, bats, tapirs, and camels. Known six of the 10 most intelligent animals came from a group of mammals.