1. Zoology Vertebrates Unit
Magnificent Mammals
Zoology
Vertebrates Unit

2. Classification of Mammals
Mammals are in the
Kingdom Animalia
Phylum Chordata
Subphylum Vertebrata
Class Mammalia

3. General Characteristics of Mammals
Mammals have:
Hair (from a lot to a little)
Specialized Teeth
Endothermic bodies (warm-blooded, maintain constant body temperature
Mammary Glands (used to feed and care for newborn young)
Placenta (most have these—supports and protects the developing embryo)
Diaphragm (muscle that is used for breathing)

4. Specialized Teeth in Mammals
Mammals have specialized teeth.
Typically begin with a “milk teeth” set that they lose to make room for permanent teeth

5. Types of Teeth
The shape of mammal teeth depends on the function of that tooth.
The three main types of teeth are:
Incisors—biting
Canines—stabbing and holding
Molars—crushing and grinding

6. If the tooth fits…
Different mammals have different types of teeth depending on their diet.
Predators have large canines.
Herbivores have large, flat molars.

7. Three Main Types of Mammals
Monotremes (lay eggs)
Marsupials (have pouches used to care for young)
Placentals (have a uterus and placenta)

8. Order Monotremata Egg-laying mammals only found in Australia
Have reptilian characteristics like a cloaca and egg laying
Have mammalian features like hair and mammary glands

9. Order Marsupiala
Young are born in an immature state and babies develop in a pouch
Most are found in Australia but the opossum is located on other continents
Examples: kangaroo, wallaby, tasmanian devil, koala, opossum

10. Placental Mammals Consist of animals in many different orders
Have a gestation period where the developing baby spends a specific time in the uterus
Have a placenta that is a special organ that surrounds and protects the developing baby and allows nutrients to pass from mom to baby
Some are domesticated and bred by humans, who are also placental mammals.

11. Order Rodentia Placental mammal Teeth specialized for gnawing
Examples: mouse, rat, beaver

12. Order Chiroptera Placental mammal Fly with a membranous wing
Use echolocation –use sound waves to locate prey and objects
Examples: bats

13. Order Insectivora Placental mammal Have long noses Mainly eat insects
Examples: shrew, mole

14. Order Carnivora Placental mammal Large carnivores Hunt for food
Examples: dog, cat. Fox, bear, raccoon

15. Order Primate Adapted for living in trees Intelligent Opposable thumbs
Examples: chimpanzee, spider monkey, humans

16. Order Artiodactyla Placental mammal Ungulate—have hooves Even-toed
Large rumen in stomach that helps break down plant material
Examples: sheep, cow,

17. Order Perissodactyla Placental mammal Ungulate (has hooves) Odd toed
Examples: horses, rhinoceros

18. Order Cetacea Placental mammal Marine mammals Use echolocation
Have blowhole to release gases
Examples: whales, dolphins

19. Order Lagomorpha One pair of long incisors
Legs specialized for hopping
Examples: rabbits and hares

20. Order Sirenia Placental mammal
Marine mammals that live in shallow water
Examples: manatee, dugong

21. Order Proboscidea Proboscis (trunk) Many have long incisors (tusks)
Examples: elephants