1. Mammalian Adaptations

2. MONOTREMES “Egg laying”
Duckbilled Platypus
Anteater
Echidna
Platypus/echidna Images from:

3. MARSUPIALS Premature babies develop in pouch
Most found in Australia/ New Guinea
Kangaroo
Wallaby
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4. MARSUPIALS
Only North American Marsupial
Oppossum

5. PLACENTAL Embryos nourished inside mother by placenta
95% of all mammals are placental
At least 18 orders
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6. Specialized teeth vary with diet

7. Grass eaters have different teeth than carnivores

8. CANINES- grip, puncture, tear PREMOLARS- shread, cut, grind
INCISORS- cut
CANINES- grip, puncture, tear
PREMOLARS- shread, cut, grind
MOLARS- grind, crush
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9. BALEEN
Thin keratin plates that hang from the roof of the mouth and screen food from water
Baleen Image from:

10. Echolocation Bats can fly without eyes, but NOT without ears
Bats emit high frequency sound waves that bounce off objects
Can determine size, distance, direction, speed

11. ECHOLOCATION Also used by some kinds of whales Image from:

12. RUMEN In cud chewers like cows, sheep, goats, giraffes
First chamber of stomach containing bacteria to digest plants

13. CECUM In NON cud chewers like horses, rabbits, rodents, elephants
Small pouch off small intestine containing bacteria to digest plants

14. Human appendix is vestigial cecum

15. PRIMATES Larger Brain Grasping hand with fingernails instead of claws
2 forward facing eyes
Includes:
Gorillas
Chimps
Monkeys
Lemurs
Gorilla Image from:

16. PRIMATES
Humans are primates too!

17. PINNIPEDS Carnivores streamlined body flipper limbed Seals Walruses
Sea lions

18. UNGULATES Mammals with Hooves
Perissodactyla
Odd number of toes
Horses, zebras, rhinos
Artiodactyla
Even number of toes
Moose, bison, deer, elk, goats, pigs, camels, sheep, cows

19. CETACEANS
Includes: whales, dolphins,
porpoises

20. PROBOSCIDEA Proboscis: Boneless trunked nose
Only 2 species Asian elephant
African elephant
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21. CHIROPTERA
BATS
Only mammals that can fly