Presentation is loading. Please wait.

Presentation is loading. Please wait.

Chapter 32-3: Primates & Human Origins

Similar presentations


Presentation on theme: "Chapter 32-3: Primates & Human Origins"— Presentation transcript:

1 Chapter 32-3: Primates & Human Origins
Essential Questions: What characteristics are shared by all primates? What are the major evolutionary groups of primates? What is a hominid? What does the fossil record show about hominids?

2 What is a primate? Fingers, toes & shoulders
5 flexible fingers, flexible toes, shoulders allow arms to rotate Most have opposable thumbs

3 Well-developed cerebrum
Allows complex behavior – social behaviors, adoption, warfare

4 Binocular vision, flat face
Able to merge images from 2 eyes Depth perception 3D view

5 Evolution of primates Prosimians – earliest branch Lemurs, lorises

6 Anthropoids – humans, apes, most monkeys
2 branches caused by separation of continents New world monkeys (Central/South America) – adapted for trees; have prehensile tail Old world monkeys (Africa/Asia) – baboons, orangutans, gorillas, chimps, humans

7 What is a hominid? About 6 m.y.a.: hominid line gave rise to humans
Bipedal – 2 feet locomotion – skeleton changed for this Early hominids Australopithecus – “Lucy” fossil; probably ancestral to humans How do the branches connect? No simple, straight-line transformation from early hominids to modern humans

8 Out of Africa – but who and when? Modern Homo sapiens
Homo neanderthalensis – Europe & N. Asia; thousand years ago Stone tools, organized groups

9 Homo sapiens – appear in middle east about 100 thousand years ago
cave paintings, burial rituals Only hominid species left on earth


Download ppt "Chapter 32-3: Primates & Human Origins"

Similar presentations


Ads by Google