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Mammals
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Slide 1

Mammals

Mammals

Slide 2

Section 1

Section 1

Five key characteristics

Some hair

Diverse & specialized teeth

Endothermic

Mammary Glands

placenta

Slide 3

Section 1

Section 1

Mammals have diverse, specialized teeth

Molars

Incisors

Premolars

canine

Slide 4

Section 1

Section 1

Mammary glands are used for milk production

Weaning is done when baby animal can feed on their own

Slide 5

Todays Mammals

Todays Mammals

Monotremes

Most primitive

Order of Monotremata

Three living species

Platypus

Two species of Echidna

Slide 6

Marsupials

Marsupials

Include wombats, kangaroos, wallaroos, koalas, and opossums

Are born days or weeks after fertilization and fully develop in a pouch

Slide 7

Placental Mammals

Placental Mammals

Placenta - allows diffusion of nutrients and oxygen into the fetus

Gestation Period - time when fetus is developing

Slide 8

Todays Placentals

Todays Placentals

Rodentia

40% of placentals

Teeth grow continually and are used for gnawing

Mice, rat, squirrel

Slide 9

Chiroptera

Chiroptera

Bats the only mammal capable of flight

Slide 10

Insectivora

Insectivora

Eats insects

Includes the mighty shrew

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Carnivora

Carnivora

Eat mostly meat

Include cats, dogs, bears, raccoons

Slide 12

Pinnipedia

Pinnipedia

Marine carnivores

Have flippers, insulating layer of blubber

Include the walrus

Slide 13

Primates

Primates

Monkey, human

Most advanced

Slide 14

Artiodactyla

Artiodactyla

Are called ungulates with even # of toes

Have a rumen and chew cud

Includes pigs, giraffes, sheep, cattle

Slide 15

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