E brain size relative to body size characteristics

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Unformatted text preview: pedal ○ Australopithecus: brain size like modern great apes, large teeth, relatively small canines, fast growth rates, bipedal ■ most well known Australopithecus afarensis: “Lucy,” parabolic teeth like humans ○ Homo: see above Laetoli, Tanzania: 3.6 mya, oldest known evidence of bipedalism at the time they were found, clear evidence that bipedalism preceded enlarged brains in hominids Key Events ○ Bipedal: 6 mya ○ Loss of honing complex: 6 mya ○ Reduced canine dimorphism: 4.4 mya ○ Fully committed to bipedalism: 3.5 mya ○ Regular use of modified stone tools (earliest stone tools): 2.6 mya ○ Regular use of animal carcasses: 2.5 mya ○ First relative brain enlargement: 2 mya ○ First major dispersal event (diaspora): 2 mya The deal with Homo erectus ○ first found in Indonesia ○ specimens from 2 mya until Homo sapiens at around 200,000 year ago need a name ● ● Olduvai Gorge, Tanzania ○ instrumental in furthering the understanding of early human evolution ○ production and use of stone tools ○ practices of both scavenging and hunting ○ collection of tools and animal remains in a central...
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