MAMMALS 4500 Species Body Hair Produce Milk Warm-Blooded 4-chambered heart Different kinds of teeth Few offspring at a time (1-10) Live Birth (most) Vertebrates (have spinal cords) Three main types: –Monotremes (lay eggs; platypus and anteater only) –Marsupials (pouch for newborns) –Placental (most common)

GUERNSEY COWS Milk producing, few offspring, live birth

MANATEE Body hair (it’s there!) Live birth Warm-blooded

STRIPED SKUNK Few offspring at a time (Thank God!)

SHEEP Body Hair (makes a nice sweater) Four-chambered heart

BEARS Body hair, different kinds of teeth

WOLF 4-chambered heart, live birth, warm blooded

IRISH TERRIER Awww….

BEAVER Milk-producing, placental, warm blooded

HORSES Few offspring at a time, milk producing, body hair

COYOTE Different kinds of teeth. (Nice doggy…)

PRAIRIE DOGS Placental, 4-chambered heart, warm blooded

Elk Body hair (the antlers are made of hair, too!)

Koala Marsupial (carries young in a pouch)

Albino Wallaby Another example of a marsupial

How many mammal characteristics can you remember?