SSS 2010-03-01
时间：2019-01-08 作者：英语课 分类：Scientific American(三)月
Big cats or wolves seem like scaled-up versions of the tabby or terrier sleeping on your sofa. But the proportions do subtly change as animals get larger. For one thing, big animals’ feet are smaller relative to their bodies than are smaller beasts’. But they compensate 1 with physics, according to new research in the Journal of the Royal Society Interface 2.
When we think about animal locomotion…whether it’s walking, running, or just standing 3 around…we usually focus on the bones and muscles in the legs and feet. But for four-legged critters, it’s the footpads that ultimately support the animal’s weight. So scientists decided 4 to take a closer look at these “natural shoes” in different-sized carnivores, including dogs, cats, wolves, leopards 5 and hyenas 6.
And they found that the relatively 7 smaller footpads of, say, leopards are much stiffer than those of little bitty kitties. Apparently 8 so that the big cats’ feet can handle the stress of the greater body weight. If a tiger’s paws were as soft as a house cat’s, he’d need hippo-sized feet to stand.
It’s said that the bigger they are, the harder they fall. But now we know that the bigger they are, the harder their feet.
—Karen Hopkin
- She used her good looks to compensate her lack of intelligence. 她利用她漂亮的外表来弥补智力的不足。
- Nothing can compensate for the loss of one's health. 一个人失去了键康是不可弥补的。
- My computer has a network interface,which allows me to get to other computers.我的计算机有网络接口可以与其它计算机连在一起。
- This program has perspicuous interface and extensive application. 该程序界面明了，适用范围广。
- After the earthquake only a few houses were left standing.地震过后只有几幢房屋还立着。
- They're standing out against any change in the law.他们坚决反对对法律做任何修改。
- This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
- There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。
- Lions, tigers and leopards are all cats. 狮、虎和豹都是猫科动物。 来自《简明英汉词典》
- For example, airlines never ship leopards and canaries on the same flight. 例如，飞机上从来不会同时运送豹和金丝雀。 来自英语晨读30分（初三）
- These animals were the prey of hyenas. 这些动物是鬣狗的猎物。 来自辞典例句
- We detest with horror the duplicity and villainy of the murderous hyenas of Bukharinite wreckers. 我们非常憎恨布哈林那帮两面三刀、杀人破坏，干尽坏事的豺狼。 来自辞典例句
- The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
- The operation was relatively painless.手术相对来说不痛。
- An apparently blind alley leads suddenly into an open space.山穷水尽，豁然开朗。
- He was apparently much surprised at the news.他对那个消息显然感到十分惊异。