根据第一段“Why did humans evolve to walk upright? Perhaps because it's just plain easier. Make that "energetically less costly," in science-speak.(为什么人类进化成直立行 走?也许是因为这样更简单。用科学术语来说就是“能量成本更低")”以及第三段“It turns out that humans walking on two ...
It turns out that humans walking on two legs use only one-quarter of the energy that chimps use while knucklewalking on four limbs(肢).And the chimps, on average, use as much energy using two legs as they did when they used all four limbs....
it does not seem to have been the primary driver: fossil and molecular evidence suggests that the first humans were were standing upright around seven million years ago – 4.5 million years
Why did humans start domesticating animals? How do people survive in The Ones Who Walk Away from Omelas? Why are humans diploid? What is it's importance? Why are human males considered to be partially homologous? Why do we breathe and eat to stay alive?
Standing Up To Fight, Does It Explain Why We Walk Upright, Why Women Like Tall Men?PLoS ONE
Why do humans lose high frequency hearing first? Why do humans have tailbones? Why is bipedalism important to human evolution? Why do dogs walk in circles? Why do chimpanzees communicate? Why did Pachycephalosaurus stay bipedal? How do opposable thumbs help humans?
humans crouch or walk upright,so it seems that we no longer need a tail.However, a university in Asi a has built robotic(机器人的)tails for old people.They can w 4 the tails to help keep their balance.The tail is about one meter long.When people walk one way,the tail moves in ...
New work from my colleagues and I has shown that two of these often misunderstood bones, the medial and lateral fabellae, which are behind the knee, could have evolved in multiple ways in primates and helped early humans learn to walk upright. The research was a systematic review of th...
Those mice were born without tails.However, researchers think other genetic changes may also play a part in losing tails.There is another mystery: Did having no tails help these ape ancestors-and eventually,humans-survive?“It could be random(随机的) chance, but it could have brought a big ...
Did humans evolve from Homo habilis? What happened to the Homo neanderthalensis? How did Homo habilis walk? How did Homo habilis differ from earlier australopithecines? How was Australopithecus sediba dated? Did Australopithecus boisei walk upright? Are gorillas considered hominids? When was Australo...