Mammals Flashcards
mammal characteristics
body hair, mammary glands and milk production, complex teeth, endothermic, four-chambered hearts, moveable eyelids, external ears, large/complex brains
order monotremata
egg-laying mammals
oviparous (eggs), mammary glands
duck-billed platypus, spiny anteater
order marsupiala
viviparous (live birth) with pouches
kangaroos, opossums, koalas
order insectivora
insectivores
shrews, hedgehogs, moles
order rodentia
gnawing mammals, two upper incisors, largest mammalian order
mice, rats, squirrels, beavers
order chiroptera
bats
only true flying mammals, digits elongated to support membranous wing, ultrasonic echolocation
order lagomorpha
four upper incisors, herbivores
rabbits, hares
order xenarthra
edentates, toothless
armadillos, anteaters, sloths
order cetacea
aquatic mammals, anterior limbs are flippers
whales, dolphins, porpoises
order sirenia
“mermaidlike,” aquatic, paddle-like forelimbs, flat tails, herbivores
manatees
order proboscidae
“trunk-nosed,” massive, herbivores, tusks
elephants, mammoths (extinct)
order artiodactyla
“even-number toed,” hoofed, four-chamber stomach, herbivores
cattle, sheep, pigs, deer
order perissodactyla
“odd-number toed,” hoofed, herbivores
horse, rhinoceros
order carnivora
“flesh-eater,” carnivore or omnivore, sharp incisors
dogs, cats, bears, foxes, raccoons, weasels, skunks, minks, otters
