1. Mammals

2. What is a Mammal? 1st Mammal: 220 million years ago Hair
Mammary Glands - Milk for Young
Breathe Air
4-chambered Heart
Endotherm

3. Form & Function Body Temperature Respiration
Subcutaneous Fat – layer of fat located beneath the skin; conserves heat
Respiration
Diaphragm – pulls in & pushes out air of lungs

4. Form & Function Cont. Feeding Excretion
Larger more powerful jaw muscles
Specialized teeth
Excretion
Kidneys: filter urea from the blood; excrete excess water or retain needed water

5. Form & Function Cont. Circulation – double loop
Response – most highly developed brains
Cerebrum: thinking & learning
Cerebellum: muscle coordination
Medulla Oblongata: involuntary functions

6. Reproduction Internal Fertilization Monotremes: egg laying
Duckbill platypus & Spiny Anteaters

7. Reproduction
Marsupials: young that complete development in an external pouch
Kangaroos, Koalas, & Wombats

8. Reproduction
Placental Mammals: nutrients, O2, CO2, & wastes are exchanged between embryo and mother through the placenta
Mice, cats, dogs, whales, elephants, humans, & sea lions

9. What is a Primates? Binocular Vision Well Developed Cerebrum
Merge visual images from both eyes
Depth of perception & 3-D view
Well Developed Cerebrum
Complex behaviors: adoption of orphans & warfare between rival primate troops
Rotating Shoulder Joints
Long Fingers & Toes

10. Types of Primates
Prosimians: small, nocturnal primates with large eyes
Lorises, Lemurs, Tarsiers

11. Types of Primates Anthropoids: humans, apes, and most monkeys
Hominoid – gibbons, orangutans, gorillas, chimpanzees, and humans
Bipedal – 2 foot locomotion
Opposable Thumb – grasping objects & using tools