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2. Savannah hypothesis - Wikipedia

   en.wikipedia.org/wiki/Savannah_hypothesis

   Savannah hypothesis. The savannah hypothesis (or savanna hypothesis) is a hypothesis that human bipedalism evolved as a direct result of human ancestors ' transition from an arboreal lifestyle to one on the savannas. According to the hypothesis, hominins left the woodlands that had previously been their natural habitat millions of years ago and ...

3. Human skeletal changes due to bipedalism - Wikipedia

   en.wikipedia.org/wiki/Human_skeletal_changes_due...

   This muscle is much smaller in chimps, which shows that it has an important role in bipedalism. When humans run, our upright posture tends to flex forward as each foot strikes the ground creating momentum forward. The gluteus muscle helps to prevent the upper trunk of the body from "pitching forward" or falling over.

4. Postural Control - Wikipedia

   en.wikipedia.org/wiki/Postural_Control

   Postural control refers to the maintenance of body posture in space. The central nervous system interprets sensory input to produce motor output that maintains upright posture. [1] Sensory information used for postural control largely comes from visual, proprioceptive, and vestibular systems. [2] While the ability to regulate posture in ...

5. Bipedalism - Wikipedia

   en.wikipedia.org/wiki/Bipedalism

   An ostrich, the co-fastest extant biped[1]along with the red kangaroo, at 70 km/h (43 mph)[2][note 1] Bipedalismis a form of terrestrial locomotionwhere an animal moves by means of its two rear (or lower) limbsor legs. An animalor machinethat usually moves in a bipedalmanner is known as a biped/ˈbaɪpɛd/, meaning 'two feet' (from Latinbis ...

6. Homo habilis - Wikipedia

   en.wikipedia.org/wiki/Homo_habilis

   Homo habilis (lit. 'handy man') is an extinct species of archaic human from the Early Pleistocene of East and South Africa about 2.3 million years ago to 1.65 million years ago (mya). Upon species description in 1964, H. habilis was highly contested, with many researchers recommending it be synonymised with Australopithecus africanus, the only ...

7. Righting reflex - Wikipedia

   en.wikipedia.org/wiki/Righting_reflex

   Righting reflex. The righting reflex, also known as the labyrinthine righting reflex, or the Cervico-collic reflex; is a reflex that corrects the orientation of the body when it is taken out of its normal upright position. It is initiated by the vestibular system, which detects that the body is not erect and causes the head to move back into ...