They are vertebrate animals that have the body covered with hair. The offspring drink mother’s milk and that is why we call them mammals.
Body temperature is constant and is between 37 ° and 40 °.
Many mammals have two successive dentitions: deciduous dentition and permanent dentition. They generally have three kinds of teeth: incisors, canines and molars. Some All teeth of some mammals are very similar.
Mammals breathe through their lungs, even aquatic mammals, like dolphins and whales.
Almost all of them have four limbs called legs, which end in fingers. However, the bat has two wings and the dolphin has two flippers.
There are many kinds of mammals: monotremes (platypus), marsupials (kangaroo), cetaceans (whales), xenarthrans (anteater), Proboscidea (elephant), even-toed ungulates (cow), odd-toed ungulate (horse), rodents (rabbit), insectivores (mole), Chiroptera (bats), carnivores (dogs ), pinnipeds (seals) and primates (monkey) .
2. Answer if these sentences are true or false: