Why did the hominins become bipedal? Explain.

Use Chapters 7, 8, and 9 to answer 1 of the following:

1) Why did the hominins become bipedal? (Chapter 7)

2) What are the differences between robust australopithecines and gracile australopithecines (Chapter 8)

3) How do Neanderthals and Modern Humans differ and how are they similar?  What are some of the possible reasons behind the extinction of the Neanderthals?  Do we know whether there was any interbreeding between these two species?  What would interbreeding infer regarding the process of speciation?- You can answer by using chapter 9 and/or watching the video: http://www.pbs.org/wgbh/nova/evolution/decoding-neanderthals.html

Answer the prompt with at least 800 words. Use AND define 5 key terms from the appropriate chapter in the textbook in your response (5 key terms minimum for full credit). Please bold or underline your key terms.  Please use complete sentences with proper grammar and spelling. All work must be in your own words. Cite any sources you use to complement your own words.

 

 

Choose and define 5 keywords with the corresponding question, within your answer.

 

Key Terms:

 

Chapter 7

 

Pitdown man

Bipedality

Bipedal anatomy

Hominid

Pongid

Tribe

Hominine

Shearing complex

Prognathism

Sectorial premolar

Pliocene

 

Chapter 8

 

Biocultural evolution

Pleistocene

Mosaic habitat

Homo

Sagittal crest

Megadontia

Zygomatic arches

Megadontia quotient (MQ)

Precision grip

Supraorbital torus

Olduwan

Sagittal Keel (ridge)

Occipital (or nuchal) torus

Shovel-shaped incisors

Acheulean

 

Chapter 9

 

Postorbital constriction

Archaic humans

Retromolar gap

Levallois technique

Mousterian industry

Canine Fossa

Mandibular symphysis

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