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Order of placental mammal-representative species

Write down main orders of placental mammals? And also write down some representative species and distinctive aspects of each of those orders?

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The orders in which placental mammals are divided are subsequent:

Artiodactyls mammals with the even number of fingers in claws or paws such as, e.g. cows, giraffes and sheep

Carnivorous predators with the canine teeth like lions, dogs, fox.

Cetaceans, aquatic animals devoid of posterior limbs and alike to fishes, such as whales and dolphins

Edentates, with rare or absent of teeth, such as sloths, armadillos, anteaters.

Lagomorphs, small-sized mammals having three pairs of a continuously increasing incisive teeth specialized in the gnawing, such as hares and rabbits.

Perissodactyls, also recognized as ungulates (hooved) big-sized animals with an odd number of the fingers in each paw e.g. horses and rhinos.

Primates characterized by big cranium and better-developed brain, such as apes and humans.

Proboscideans big-sized animals whose nose and superior lip form trunk (snout) like elephants.

Chiropterans flying nocturnal mammals like bats.

Rodent’s animals with two pairs of continuously increasing incisive teeth like mice, rats, squirrels, castors.

Sirenians, aquatic mammals of the freshwater, deprived of posterior limbs, such as manatees and dugongs.

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