Biology 12 Orders Of Placental Mammals Flashcards
Order Insectivora
-pointed snouts -the smallest of mammals -insect-eaters -shrews, hedgehogs, moles
Order Chiroptera
-nocturnal, flying mammals -use sonar -fruit and insect-eaters-bats
Order Primates
-binocular vision, large brains -mostly tree-dwellers -opposable thumb -monkeys, apes, humans
Order Xenarthra
-toothless or peg-like teeth -insectivores -anteaters, sloths, armadillos
Order Rodentia
-sharp, continuously growing incisor teeth -herbivores -beavers, rats, woodchucks, marmots, squirrels, hamster, gerbils
Order Lagomorpha
-back legs are longer than the front -adapted to jumping -incisors that continually grow -herbivores -rabbits, pikas, hares
Order Carnivora
-teeth adapted to tear flesh, meat eaters -dogs, cats, wolves, bears, seals, walruses, coyotes, skunks, otters, minks, weasels
Order Proboscidea
-long trunks -incisors are tusks -largest land animal -elephants
Order Sirenia
-slow-moving, aquatic -bigheads -no hind limbs -manatees and dugongs
Order Perissodactyla
-hoofed, with an odd number of toes -plant-eaters -horses, zebras, rhinoceroses, tapirs, donkeys
Order Artiodactyla
-hoofed, with an even number of toes -plant-eaters-deer, cattle, pigs, hippopotamuses, pigs, camels
Order Catacea
-front limbs that are flippers -no hind limbs-nostrils are fused into one blowhole at the top of the head -hair at muzzle -whales, dolphins, porpoises