EESA06H3 Lecture Notes - Lecture 6: Bipedalism, Australopithecus, Particle Accelerator
18 Apr 2016
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Document Summary
Million years ago, apes began to walk bipedal. Change in posture resulted in change in their brains. Homo sapiens are the most strongest and the only form to live in the end. The afar, north eastern ethiopia (part of the rit valley) Clues about the age came from the disinct landscape. By the fossils of animals that lived there. Example: found fossil of a hippo (hippos can only live in wet moist environments ) As the environment changed, our ancestors changed as well (since our ancestors spent most of their ime in trees) As their forest began to decrease, they developed a trait bipedal. No other mammal habitually walk on 2 legs like us. Stood up to pick fruits, look for predators, cool more. Such as volcanic ash, dated to 3. 4 mya, thus the fossil must efficiently (not much sun on our body) be younger (around 3. 3 mya) The fossil was called salam" (by the researcher, zaray )
