1. Intro. Mammals
By Mr. “I have fur too” Chapman

2. Mammals

14. thumb

16. Characteristics
 All mammals have the following:
 1. 4 chamber heart
 2. Fur/hair
 3. Warm Blooded
 4. Mammary glands
 These are highly modified sweat glands that
secrete modified sweat called milk.
– Milk is rich in protein, carbohydrates, and other
nutrients.

17. Characteristics
 5. Mostly nocturnal, only about 10% are
diurnal.
 6. Teeth “ICPM”

18. Characteristics
 Teeth:
1 .Incisors - clipping or cutting (biting)
 2. Canines - tearing, puncturing, killing
 3. Premolars and molars - “cheek teeth”
for chewing.

19. Teeth
 Dental formula I C P M
 --- - -- - -- - ---
 I C P M

21. Use of teeth
 Herbivores - crushing
 Carnivores - slicing

22. THE END