这只勇敢的小动物，蜗牛，从四楼走到街上花了整整九个小时。
That brave little animal, the Snail, had taken exactly nine hours to go from the fourth floor to the street.
大规模鲸鱼搁浅的现象涉及到四种或更多种动物。
为了有效地利用现有的野生食物，群体通常是游牧的，并跟随成群的动物四处移动。
In order to efficiently take advantage of the wild foods available, bands are often nomadic and move around following herds of animals.
四年前，她在北京动物园的一个小笼子里发现了一只孤独的水獭，这让她十分难过。
It made her sad to find a solitary otter in a small cage at Beijing Zoo four years ago.
然而，动物学家伊丽莎白·沃茨在对加万的数据进行的最新再分析中发现，随着黑猩猩达到性成熟，它们四肢的生长速度会加快。
In a latest reanalysis of Gavan's data, nevertheless, zoologist Elizabeth Watts has found that as chimpanzees reach sexual maturity, the growth rate of their limbs accelerates.
四足动物的脖子通常很长，这样它们就可以毫不费力地够到食物，但是大象的脖子很短，这样它就可以更容易地支撑它巨大的头和沉重的牙齿的重量。
The neck of four footed animals is usually long, to have them reach their food without difficulty, but the elephant has a short neck, to make him more easily support the weight of his huge head and heavy teeth.
其中很多动物都有细小的四肢；有些看起来更像蛇而不是蜥蜴，还有一些完全失去了后肢的脚趾。
Many of these have minuscule limbs; some look more like snakes than lizards and a few have completely lost the toes on their hind limbs.
科学家指出，这些食肉动物只生活在群岛中的四个小岛上，那里的猎物基数太小，哺乳类食肉动物无法生存。
These carnivores live only on four small islands in the archipelago where, scientists note, the prey base is too small to support mammalian carnivore.
下面的四种动物现在正处于危险之中。
您不可能在一次旅行中同时看到四种海洋动物。
You cannot spend time with all four kinds of sea animals in one tour.
泰德两岁就开始读书，四岁时就知道许多知识，从天文学到动物学都有所了解。
Ted began reading at two, and by four, he had known a lot about many subjects from astronomy to zoology.
例如，四趾的始祖鸟先于三趾的始祖鸟出现，但北美的化石证据表明，这两种动物之间有一个急促而不均衡的转换过程。
The four-toed Eohippus preceded the three-toed Miohippus, for example, but North American fossil evidence suggests a jerky, uneven transition between the two.
我们读了一封关于一些四足动物的髓质脊髓的信。
We read a letter about the medulla spinalis of some quadrupeds.
由塔丰·奥兹利克带领的土耳其科学家提出，一个基因的突变可能会导致四足动物的出现。
Turkish scientists led by Tayfun Ozcelik suggested that a mutation in a single gene might result in quadrupedalism.
毕加索的画和他的生活一个样，满是四足动物和鸟儿。
Picasso's art was as populated with animals and birds as his life.
但对四脚站立的动物来说，真正在这些运动中支撑身体重量的是脚垫。
But for four-legged critters, it's the footpads that ultimately support the animal's weight.
动物权益保护组织“人道对待动物协会(PETA)”周四劝告人们应立刻停止食用鱼类，转而吃纯素，以保护动物及整个地球。
Animal rights group people for the Ethical Treatment of animals (PETA) Thursday urged people to stop eating fish and go vegan to help animals and the planet.
这些动物早已拥有四色觉，但关键的区别是，他们的第四种颜色位于高频的紫外线区域，在人类可视范围之外。
Those creatures have long had four-color vision, but a key difference is that their fourth type of color detector is in the high-frequency ultraviolet range, beyond where humans can see.
的四种动物——鱼、熊猫、藏羚羊及燕子。
The long--anticipated mascots feature four of China's most popular animals--the fish,the panda,the Tibrtan antelope and the swallow .
它们可能在以花为食的鸟类和昆虫或者搬运花粉的捕乳动物还在四处游荡之前开花。
They may flower before the birds and insects that feed on them, or the mammals that carry their pollen, are at large.
所以，长着四角眼的动物由于其巨大的瞳孔在白天能紧密的闭合在一起阻挡光线使得它们在晚上有很好的分辨力。
Consequently, animals with rectangular eyes can see better at night due to having larger pupils that can be closed more tightly during the day to restrict light.
动物保护组织的人在周四发表了一份声明，谴责了这种虐待动物的可耻行为。
People for the Ethical treatment of Animals, or PETA, issued a statement Thursday decrying the cruel treatment.
我们的包括365号的四只动物，已经在今天早上被运来此处，并且被关在屠宰房后的围栏里。
Our four animals, including 365, are penned in a shed behind the slaughterhouse, where they were delivered early this morning.
生物钟控制动物吃东西、睡眠及繁殖的时间：生物钟有助于动物适应四季的变化，这一点极其重要。
This clock governs when an animal eats, sleeps and reproduces: it is hard to overstate how important it is at helping animals adapt to changing conditions throughout the seasons.
实际上，两足动物的行走可能比四肢的行走花费更少的力气。
Walking as bipeds might actually use less energy than movement on all fours does.
鼯猴并不是狐猴，但鼯猴科的四个物种是灵长类动物最近的亲戚。
The flying lemur is not alemur, but the four species of Cynocephalidae are the closes trelated family to primates.
动物们在四周走动的时间也有变化。它们在等候区花11.6%的时间来回走动，而在围场只花7.2%的时间。
The animals also moved around much more, spending 11.6% of their time on the move in the holding areas, but only 7.2% in the enclosures.
鼯猴并不是狐猴，但鼯猴科的四个物种是灵长类动物最近的亲戚。
The flying lemur is not a lemur, but the four species of Cynocephalidae are the closest related family to primates.
鼯猴并不是狐猴，但鼯猴科的四个物种是灵长类动物最近的亲戚。
The flying lemur is not a lemur, but the four species of Cynocephalidae are the closest related family to primates.
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