Class Mammalia (Mammals) by Scientific Name


Order Artiodactyla Antelope, Giraffe & Pigs	Order Carnivora Carnivores
Order Cetacea Whales, Dolphins & Porpoises	Order Chiroptera Bats
Order Dasyuromorphia Australasian carnivorous marsupials	Order Dermoptera Flying Lemurs
Order Edentata Anteaters, Armadillos & Sloths	Order Hyracoidea Hyraxes
Order Insectivora Insectivores	Order Lagomorpha Rabbits & Pikas
Order Macroscelidea Elephant Shrews	Order Marsupialia Marsupials
Order Monotremata Platypus & Echidnas	Order Perissodactyla Horses, Rhinos & Tapirs
Order Pholidota Pangolins	Order Primates Primates
Order Proboscidea Elephants	Order Rhynchocephalia Tuatara
Order Rodentia Rodents	Order Scandentia Tree Shrews
Order Sirenia Dugongs & Manatees	Order Tubulidentata Aardvarks

There are about 4500 living species of class Mammalia, to which we belong. Mammals are homeotherms (warm-blooded), with some species better at it than others. They have a four-chambered heart with complete double circulation; that is, the aerated blood of the arteries does not mix with the oxygen-depleted blood of the veins. The skin of most mammals is covered with hair at some stage of life. Mammals nourish their young with milk secretions produced in mammary glands of the mother. The fertilized egg develops inside the female; in most mammals, a special organ, the placenta, nourishes the developing embryo. Mammals have complex and differentiated teeth.