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Mammals

Mammals. Chapter 36. Section 1. Five key characteristics Some hair Diverse & specialized teeth Endothermic Mammary Glands placenta. Section 1. Mammals have diverse, specialized teeth Molars Incisors Premolars canine. Section 1. Mammary glands are used for milk production

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Mammals

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  1. Mammals Chapter 36

  2. Section 1 • Five key characteristics • Some hair • Diverse & specialized teeth • Endothermic • Mammary Glands • placenta

  3. Section 1 • Mammals have diverse, specialized teeth • Molars • Incisors • Premolars • canine

  4. Section 1 • Mammary glands are used for milk production • Weaning is done when baby animal can feed on their own

  5. Section 2 Today’s Mammals • Monotremes • Most primitive • Order of Monotremata • Three living species • Platypus • Two species of Echidna

  6. Marsupials • Include wombats, kangaroos, wallaroos, koalas, and opossums • Are born days or weeks after fertilization and fully develop in a pouch

  7. Placental Mammals • Placenta - allows diffusion of nutrients and oxygen into the fetus • Gestation Period - time when fetus is developing

  8. Today’s Placentals • Rodentia • 40% of placentals • Teeth grow continually and are used for gnawing • Mice, rat, squirrel

  9. Chiroptera • Bats the only mammal capable of flight

  10. Insectivora • Eats insects • Includes the mighty shrew

  11. Carnivora • Eat mostly meat • Include cats, dogs, bears, raccoons

  12. Pinnipedia • Marine carnivores • Have flippers, insulating layer of blubber • Include the walrus

  13. Primates • Monkey, human • Most advanced

  14. Artiodactyla • Are called ungulates with even # of toes • Have a rumen and chew cud • Includes pigs, giraffes, sheep, cattle

  15. Perissocactyla • Ungulates with an odd # of toes • Include horse, zebras, rhino

  16. Cetacea • Live in water • Dolphins, porpoises, whale • have a plow hole used to breath

  17. Lagomorpha • Rabbits and hairs • Teeth grow all the time

  18. Sirenia • Barrel-shaped body • Manatees or called the sea cow

  19. Proboscidea • Elephants the largest on land

  20. This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.

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