DIVERSITY OF MAMMALS Placental Mammals Animals that develop

Placental Mammals ◦ Animals that develop in the uterus of the mother. All nutrients,

Order Lagomorpha ◦ Rabbits, pikas, hares ◦ Hind legs for jumping ◦ Long front

Order Primates ◦ Very intelligent ◦ Apes (chimps, orangutans, gorillas, and gibbons), lemurs, monkeys,

Order Carnivora ◦ Cats, cat-like animals, dog-like animals, sea lions, walruses, bears, skunks, and

Order Rodentia ◦ Porcupines, beavers, chipmunks, mice, and rats ◦ Largest order ◦ Live

Order Cetacea ◦ Dolphins, porpoises, and whales ◦ Very intelligent ◦ Complex brains ◦

Order Sirenia ◦ ◦ Manatees and dugongs Live in tropical waters Often injured by

Order Insectivora ◦ Moles ◦ Good diggers ◦ Poor eyesight ◦ Eat insects ◦

Order Perissodactyla ◦ Includes horses, rhinoceroses, and tapirs

Order Edentata ◦ Armadillo, sloths, and anteaters ◦ Have plates of bones to protect

Order Artiodactyla ◦ Hippos ◦ Usually vegetarians

Order Chiroptera ◦ Bats ◦ Good pollinators ◦ Eat fruit or insects ◦ Use

Order Proboscidea ◦ Elephants ◦ One pair of incisors that are modified into tusks

Marsupials ◦ Opossums, kangaroos, and kolas ◦ The young develops for a short time

Monotremes ◦ Platypus and Echidnas ◦ Mammals that lay eggs ◦ Found only in

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DIVERSITY OF MAMMALS

Placental Mammals ◦ Animals that develop in the uterus of the mother. All nutrients, oxygen, carbon dioxide, and waste are exchanged between the embryo and mother through the placenta. ◦ Benefits ◦ Protection ◦ Nourishment ◦ Oxygen movement ◦ Removing Wastes ◦ The time a mammal is in the uterus is called gestation.

Order Lagomorpha ◦ Rabbits, pikas, hares ◦ Hind legs for jumping ◦ Long front teeth that grow through the whole life

Order Primates ◦ Very intelligent ◦ Apes (chimps, orangutans, gorillas, and gibbons), lemurs, monkeys, and humans

Order Carnivora ◦ Cats, cat-like animals, dog-like animals, sea lions, walruses, bears, skunks, and weasels ◦ Have long, pointed canines and incisors ◦ Have strong jaws ◦ Have some claws

Order Rodentia ◦ Porcupines, beavers, chipmunks, mice, and rats ◦ Largest order ◦ Live everywhere ◦ Razor sharp teeth to gnaw on hard seeds, bark, twigs, and roots

Order Cetacea ◦ Dolphins, porpoises, and whales ◦ Very intelligent ◦ Complex brains ◦ Little or no hair ◦ Breathe through blow holes

Order Sirenia ◦ ◦ Manatees and dugongs Live in tropical waters Often injured by speed boats Can stay underwater for 15 minutes ◦ Breath on the surface ◦ Have tails and front flippers ◦ Also called sea cows

Order Insectivora ◦ Moles ◦ Good diggers ◦ Poor eyesight ◦ Eat insects ◦ Pointed snouts and sharp claws

Order Perissodactyla ◦ Includes horses, rhinoceroses, and tapirs

Order Edentata ◦ Armadillo, sloths, and anteaters ◦ Have plates of bones to protect their body ◦ Good diggers

Order Artiodactyla ◦ Hippos ◦ Usually vegetarians

Order Chiroptera ◦ Bats ◦ Good pollinators ◦ Eat fruit or insects ◦ Use echoes to locate things ◦ Only group of mammals to fly

Order Proboscidea ◦ Elephants ◦ One pair of incisors that are modified into tusks ◦ Have trunks

Marsupials ◦ Opossums, kangaroos, and kolas ◦ The young develops for a short time in the body and then a period of time in a pouch made of skin and hair

Monotremes ◦ Platypus and Echidnas ◦ Mammals that lay eggs ◦ Found only in Australia, Tasmania, and New Guinea