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Primates A. Primate: group of mammals that include lemurs, monkeys, apes, and humans
1. arboreal: live in trees 2. flexible shoulder & hip joints
p. 430 3. Opposable thumbs 4. Vision 5. Brain volume 6. Arm movement 7. Flexible joints 8. Feet
B. Primate origin 1. Prosimianlike primates a. small, present-day b. lemurs, aye-ayes, tarsier c. tropical forests
d. Purgatorius – earliest. primate fossil, resembling ad. Purgatorius – earliest primate fossil, resembling a squirrel that lived 66 million years ago 2. Humanlike primates a. anthropoids
b. monkeys & hominoids 1) apes & humans c. complex brains, larger, different skeletal features, more upright posture
d. New World monkeys 1) prehensile tail used as 5th limb e. Old World monkeys 1) larger, no prehensile tail, live on ground or trees
f. Hominoids: lack tails1) apes: long, muscled forelimbs for climbing, live in social groups 2) humans: larger brain, walk upright a) millions years
II. Human Ancestry 5-8 million years ago in Africa Hominids / African apes Few fossils; DNA evidence
b. bipedal B. Scientists of interest 1. Raymond Dart a discovered a young hominid – Australopithecus meaning “southern ape of Africa” b. 1-2 million years old
c. foramen magnum: opening. in the skull through which thec. foramen magnum: opening in the skull through which the spinal cord passes as it leaves the brain
d. australopithecine: early. hominids that lived in Africa &d. australopithecine: early hominids that lived in Africa & apelike & humanlike characteristics
2. Donald Johanson a found oldest known & nearly complete australopithecine 1) “Lucy” 2) 3-5 million years ago (p. 440
C. Modern humans Louis & Mary Leakey found humanlike skull a. classified in genus homo b. Homo habilis “handy man”
2. Homo erectus “upright man” a. larger brain & a more humanlike face
3. archaic Homo sapiens a. Neanderthals 1) 35,000 – 100,000 2) lived in caves, larger brains, religious views, spoken language
b. Cro-Magnons: possible decendents of modern humans1) 35, ,000 Rd. p. 448 – The Land Bridge to the New World
Evolution of Primates Chapter 6, Section 3.
KEY CONCEPT Humans appeared late in Earth’s history.
1 This is Jeopardy Human Evolution 2 Category No. 1 Category No. 2 Category No. 3 Category No. 4 Category No Final Jeopardy.
Chapter 34 Review Humans Charles Page High School Dr. Stephen L. Cotton.
Primates Primates are an order of mammals which includes lemurs, monkeys, apes, and humans Where do we separate?
Human Evolution Chapter 32-Mader.
Probably first appeared about 200,000 years ago. Paleoanthropologists study human evolution. There is sparse evidence relating to the evolution.
Humans as Primates.
Primates BIO 2215 Oklahoma City Community College Dennis Anderson.
Humans Have a Relatively Short History
Primate and Human evolution
Human Origins in Africa
Section 16.1 Summary – pages
Section 4 Primates & Human Origins
Evolution of Early Hominids Evolution of Later Hominids
Lesson Overview 26.3 Primate Evolution.
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