1. Kingdom: Animalia Phylum: Chordata
MAMMALS!
Kingdom: Animalia
Phylum: Chordata

2. Mammal Characteristics:
Mammary Glands: Females make milk for their young.
Breathe air
Sexual reproduction
Endothermic
Have hair
Specialized teeth
Large brains

3. Types of Mammals Placental Mammals: have live births
Monotremes: lay eggs
Marsupials: have pouches for fetal development

4. I. Placental Mammals Characteristics:
Embryo develops inside the mother
Live birth
VOCAB. >
Gestation: Time period during which the zygote is inside the mother.

5. Types of Placental Mammals Anteaters, Armadillos, Sloths
Characteristics:
Toothless: Anteaters don’t have teeth!
Eat insects with long, sticky tongues.
Have unique backbone – special connections between vertebrae.

6. Placental Mammals (cont’d) Rabbits, Hares, Pikas
Characteristics:
Similar to rodents
Tail is shorter than a rodent’s tail
Sharp, gnawing teeth

7. Placental Mammals (cont’d) Insectivores: Mole, Shrew, Hedgehog
Characteristics
Long pointy noses
Small brain
Simple teeth
Eat insects; some eat small mammals

8. Placental Mammals (cont’d) Rodents
Characteristics
Sensitive whiskers
Gnawing & chewing wear down their teeth
Live on every continent except Antarctica
Examples: Rats, mice, guinea pigs, porcupines, chinchillas

9. Placental Mammals (cont’d) Flying Mammals: Bats
Characteristics
Nocturnal
Eat insects and other mammals
Use echolocation for flight navigation and to find food
Examples: Fruit bats, spotted bats, vampire bats

10. Placental Mammals (cont’d) Carnivores
Characteristics
Meat eaters
Canine teeth
Teeth for slicing meat
Examples: Cats, coyotes, bears, walruses, seals, otters

11. Placental Mammals (cont’d) Trunk Nosed - Elephants
Characteristics
The elephant is the only mammal with a trunk.
Trunk : upper lip and nose
Use trunk for grasping, food gathering, and spraying water

12. Placental Mammals (cont’d) Hoofed Mammals
Characteristics
Thick, hard pad covers the toe
Large, flat molars for grinding plant material
Fast runners
Examples: Horses, cows, pigs, deer, giraffes, camels, tapirs, rhinoceroses

13. Placental Mammals (cont’d) Cetaceans: Whales, Dolphins, Porpoises
Characteristics
Live in water
Have lungs
Nurse young
Use echolocation

14. Placental Mammals (cont’d) Manatees and Dugongs
Characteristics
Live along coastlines and in rivers
Swim slowly using front flippers and tail
Eat seaweed and plants
Have lungs; lift noses out of water to breathe air

15. Placental Mammals (cont’d) Primates
Characteristics
5 fingers/toes with opposable thumbs for holding objects
Larger brain; intelligent
Forward facing eyes to focus on one visual subject
Examples: Apes, monkeys, lemurs, aye aye, humans

16. II. Monotremes Platypus and Echidnas
Characteristics
Lay eggs
Endothermic
Have hair
Babies do not suckle but rather lick milk from the skin around the mother’s mammary gland.

17. III. Marsupials Kangaroos, Koalas, Possums
Characteristics
Newborns complete their development in mother’s pouch and later may “ride” in the pouch.