Orders of Placental Animals


 * Insectivores - have long, narrow snouts and sharp claws for digging. Ex. shrews, hedgehogs, moles, etc.
 * Chiropterans - winged mammals. Eat fruit and bugs but three species feed on blood.
 * Sirenians - herbivores in rivers, bays, and warm costal waters. Large and slow. Ex. manatees, dugongs, etc.
 * Rodents - single pair of long, curved incisor teeth on upper and lower jaw. Ex. mice, rats, voles, squirrels, beavers, porcupines, gophers, chipmunks, gerbils, prairie dogs, chinchillas, etc.
 * Cetaceans - sea creatures that must come to the surface to breathe. Ex. whales, river dolphins, narwhals, etc.
 * Carnivores - meat eaters. Ex. dogs, foxes, bears, raccoons, walruses, etc.
 * Xenarthrans - have simple teeth with no enamel or no teeth. Ex. slothes, armadillos, anteaters, etc.
 * Primates - closely related to ancient insectivores. Have highly developed cerebrum and complex behaviors. Ex. lemurs, apes, humans, etc.
 * Artiodactyls - hoofed with even number of toes. Ex. cattle, sheep, goats, pigs, ibex, giraffes, deer, antelope, gazelles, hippopotami, etc.
 * Perissodactyls - hoofed with odd number of toes. Ex. zebras, horses, rhinoceros, tapirs, etc.
 * Probascideans - mammals with trunks. Only African and Asian elephants.
 * Lagomorphs - two pairs of incisors on upper jaw. Leaping hind legs. Ex. rabbits