The researchers compared the genomes of six kinds of apes, including humans, and 15 kinds of monkeys with tails to find important differences between the groups. Once they identified an important mutation, they tested their theor...
题目 (B)3. From Paragraph 2, we can get the following information except ___. A. how humans lost their tails B. Japanese built a robotic tail for old people C. what the robotic tail is like D. how the robotic tail works 相关知识点: 试题来源: 解析 答案见上 反馈 收藏 ...
[01:29.28]of six kinds of apes, including humans, [01:33.64]and 15 kinds of monkeys with tails [01:38.04]to find important differences between the groups. [01:43.92]Once they identified an important mutation, [01:48.60]they...
Xia said, however, that other genetic changes may also play a part in losing tails. 不过,夏说,其他基因变化也可能是导致尾巴脱落的原因之一。 Another mystery: Did having no tails help these ape ancestors – and eventually, humans – survive? Or was it just a chance mutation in a populatio...
lost their tailsAROUND 25 million years ago, our ancestors lost their tails. Now geneticists may have found the exact mutation that prevents apes like us growing tails - and if they are right, this loss happened suddenly rather than tails gradually shrinking.Michael Le Page...
How all the animals lost their tails You see, the tails of the animals were hard and dry because of a stretch of hot, dusty weather. Then, at last, came a rain. It poured down on the animals’ tails and softened them. But then a cold wind came and froze all the tails solid. A...
Humans are vertebrates. Way back when, maybe we all had tails, and they provided some important function for us, perhaps to help us balance.Some other traits that could possibly be human atavisms are webbed fingers and toes, extra fingers and toes, hiccups and large canines. Until we know...
You may notice that they prefer toys that move around, encouraging your cat to zone in on their hunting skills. However, not all cats are natural-born mousers. Since cats have been domesticated for so long, some cat breeds have lost this hunting instinct through years of selective breeding....
Their relief to find the threshers spread through the community; all 4,000 of Malapascua’s residents, from the fishermen to hoteliers, rely on those fish with the long, whip-like tails. Credit: Steve De Neef As news of the devastation spread, divers around the world with a soft ...
Horner had known him since Larsson was a graduate student at the University of Chicago. Larsson was interested in how dinosaurs lost their tails along the evolutionary road. “As soon as he started talking about looking for the genes that were responsible, I said, ‘Well if you could find ...