ANTHRO 1 Lecture Notes - Lecture 11: Most Recent Common Ancestor, Encephalization Quotient, Encephalization
9 Mar 2018
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The pan- homo last common ancestor a. b. c. d. Humans and chimps share 98% of their dna, but vary greatly in anatomy. Encephalization level (eq): deviation from an expected brain to body ratio i. ii. In most animals, brain development occurs before or immediately after birth. In humans, brain growth occurs before and after birth i. Likely relates to limits of our pelvic opening. Does brain size matter? a. b. c. d. We don"t have largest brain to body size. What makes us different is how our brain is organized. The structures for language were already present in earlier ancestors, an elaboratio. Why did humans evolve language? a. b. c. d. Humans are not the only primate with language. It evolved with the larger ability for symbolic culture. All primates have a tendency toward erect posture. Humans are the only primates that use bipedalism as their primary mode of locomo. Keep legs stable to support the weight of body.
