2. Pennsylvania Mammals Mr. Distasio PVHS

3. Mammal Characteristics – Introductory video

4. Mammal Characteristics Female has milk-secreting mammary glands. When an animal is weaned it must seek out food other than mother’s milk.

5. Most are born alive. viviparous viviparous: internal nourishment via the placenta oviviparous oviviparous: eggs hatch outside

6. Covered with hair.

7. All mammals are vertebrates.

8. Two occipital condyles.

9. cervical Seven (7) cervical vertebrae.

10. Diaphragm separates body cavity.

11. Homeothermic / Endothermic

12. Four (4) chambered heart

13. All mammals have sweat glands. All mammals have fat producing glands.

14. Mammal Classification Tooth structureincisorsmolarscaninespremolars

15. Foot structure “ Flat-footed ” “ Walks on toes ”

16. Gastrulation

17. Mammalian Evolution Cenozoic Era: “the age of mammals” over 70 million years

18. Three major groups: Monotremes: egg laying Marsupials: pouched Placental mammals

20. Other Important Mammal Terms AlbinoBrowser Hibernation Home Range MangeMast OmnivoreRabies RutCarnivore Delayed ImplantationFeral GestationHeat GrazerHerbivore Opportunistr/K selective