The loss of the tail is among the most notable anatomical changes to have occurred along the evolutionary lineage leading to humans and to the ‘anthropomorphous apes’1,2,3, with a proposed role in contributing to human bipedalism4,5,6. Yet, the genetic mechanism that facilitated tail-loss...
Toddlers don’t really understand that they can hurt us. They don’t know that pulling our tails, or picking us up wrong, or throwing things at us can hurt us. Adult humans shouldn’t leave their toddlers alone with us. They need to teach them the right way to treat us. The big hu...
It can include eyes, ears, claws, and even tails. In Italy, scientists discovered that dogs wag their tails to the right when they see something that they like. When they see something that they don’t like, their tails go to the left. There are lots of fun examples. Left-handed ...
hairlessness evolved to get rid of lice(風子), fleas(跳蚤), and other parasites(寄生虫)that settle deep in fur. The scientists propose that pressure forced by parasites, in combination with man's unique intelligence, allowed humans to shed(脱掉)fur along with its resident(居民)fleas, and ...
When they see something that they don’t like, their tails go to the left. Many people believe that polar (极地的) bears are left-handed. They say they cover their black noses with their right paws, which helps them hide in the snow when they are hunting. Then they can sneak up (...
Which one of the following statements is true about polar bears?A. It's believed that polar bears are left-handed for they use their left paw to cover their nose.B. The findings that polar bears cover their nose while hunting is supported by scientists.C. Scientists disagree with the ...
When they see something that they don't like,their tails go to the left.Many people believe that polar bears are left handed. They say they cover their black nose with their right paw, which helps them hide in the snow when they are hunting. Then they can sneak up on(悄悄走近) a ...
Animals'legs and tails have some connection with their brain. G. Stimulation on some parts of the brain causes no physical reaction. . Certain parts of the brain are devoted to language and learning activities.30."Silent cortex"has proved to be . sensitive to stimulation . useful in complex...
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B. Animals’ legs and tails have some connection with their brain. C. Stimulation on some parts of the brain causes no physical reaction. D. Certain parts of the brain are devoted to language and learning activities. 3. “Silent cortex” has proved to be___. A. sensitive to stimulation...