Whales and dolphins have been found with hind limbs; this rare occurrence is due to the reemergence of a trait they inherited from their terrestrial ancestors.
发现鲸和海豚身上有后肢；这种稀有的现象是由于它们在陆地上的祖先身上的特征再次被遗传。
A goat was standing up against a tree on its hind legs, trying to get at the leaves.
一只山羊后腿趴在一棵树上站起来，试图去够树叶。
The fossil luckily includes a good portion of the hind legs.
很幸运，化石包含了一大部分后腿。
Archaeopteryx shows no obvious features of gliders, such as a broad membrane connecting forelimbs and hind limbs.
始祖鸟并没有表现出明显的滑翔机的特征，比如有一层连接前肢和后肢的宽膜。
Their streamlined bodies, the absence of hind legs, and the presence of a fluke and blowhole cannot disguise their affinities with land dwelling mammals.
它们的身体呈流线型，后肢完全消失，身体上长出了尾片和喷水孔，所有这些特征都无法掩饰它们与陆生哺乳动物之间的亲缘关系。
Basilosaurus was undoubtedly a fully marine whale with possibly nonfunctional, or vestigial, hind legs.
龙王鲸无疑是一种完全海生的鲸鱼，它的后腿可能没有功能，或退化了。
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.
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。
One big mottled arm shot out and caught Toad by a fore-leg, while the other-gripped him fast by a hind-leg.
一只长斑点的大胳膊猛地伸出来，抓住托德的一条前腿，另一只手抓住他的一条后腿。
A magnificent Poodle appeared, walking on his hind legs just like a man.
一只华丽的鬈毛狗出现了，像人一样用后腿走路。
Many incomplete skeletons were found but they included, for the first time in an archaeocyte, a complete hind leg that features a foot with three tiny toes.
发现的残骸有许多都不完整，但还包含一条完整的后腿，足部有三个小脚趾，这是原始动物骨骼中的首例。
When Oscar the cat lost both his hind paws in a farming accident, it was feared he'd have to trundle around in one of those wheeled-cat apparatuses.
当猫叔奥斯卡因一次农作事故失去两只后爪后，人们担心他恐怕得靠那种轮式装备滑来滑去了。
The first wrongly assumes that the pterosaurs' hind feet resembled a bat's and could serve as hooks by which the animal could hang in preparation for flight.
第一个（假设）错误地认为翼龙的后脚类似于蝙蝠的后脚，可以作为钩子，用来挂起来准备飞行。
For instance, whales and dolphins have been found in nature with hind limbs; this rare occurrence is due to the reemergence of a trait they inherited from their terrestrial ancestors.
比如说，鲸和海豚身上有后肢；这种稀有的现象是由于它们在陆地上的祖先身上的特征再次被遗传。
You can successfully teach a dog to walk on its hind legs, and if it repeats this behaviour regularly, its offspring are also likely to do it too.
你可以成功地教会一只狗用后腿站立，如果不断地重复这个行为，它的后代可能也会这么做。
The leopard was snarling and furious at being caught, with its hind leg gashed by a wire snare.
这条雪豹由于后腿被钢丝套缠住，在愤怒地咆哮，若在平时，就不会那么失态。
Meadow, a Black Angus yearling calf, tries out her new prosthetic hind legs at Colorado State University's James L. Voss Veterinary Teaching hospital.
科罗拉多州立大学詹姆斯·l·沃斯兽医教学医院，一岁的安格斯牛麦兜正在试用她的新假肢后腿。
Some species simply live in the dung, while others form perfectly spherical dung balls, which they roll with their hind legs, often over large distances, to a place where they can bury it.
部分蜣螂干脆居住在粪便当中，其他蜣螂用自己的后足将粪便滚成完美的球形，进行距离的运输，直到到达它们埋藏粪球的地方。
The new findings could advance the ongoing debate on the phylogenetic status of hind-limbed snakes-whether they are a peculiar sister group or the ur-snake from which all others descend.
这项新发现可以推进有关后足蛇类在种族演化进程中的地位的不休争论——他们究竟是一种特殊的分支种群，还是其他各种蛇类在遗传意义上的鼻祖？
This dog would make even a dog like that slink nonchalantly be? Hind the sofa and pretend to be extremely preoccupied with its rubber bone.
这只狗甚至可以和其他狗那样懒洋洋地趴在舒适的沙发后面，假装对它塑胶狗骨头兴致盎然。
It walked on its hind legs but also could drop to all fours, and scientists told reporters that could prove to be a missing evolutionary link.
地爪龙以二足直立走路，但也能低身以四足行走，科学家告诉记者说，这可能证明是一项失踪的进化链结。
When we reached the little dachshund's pen, she was on her hind legs against a cyclone fence, barking in an unbearably shrill tone, though she was wagging her tail.
当我们来到小达克斯猎犬的栅栏前的时候，她正用后退蹬着围栏，用令人难以忍受的声音尖叫吠着，摇着尾巴。
Brummell, buddy to the future Hind George IV, developed a dress code that anyone, not just royalty, could follow.
布鲁梅尔，是未来的欣德·乔治四世的密友，制定了一套着装准则——任何人，不仅仅是皇族，都可效仿。
Grant on the other hand can talk the hind legs off a donkey but he prefers to steer clear of personal details, claiming there are many people worse off than him.
另一方面，格兰特可以喋喋不休，但一谈到个人细节就绕开，他说有的是比他更糟糕的人。
But when we got it back to the laboratory it became clear it was a cockroach, closely related to the common roach but with sophisticated hind legs and the ability to jump many times its own height.
不过在带回实验室之后我们才发现这是只蟑螂，与通常所见的蟑螂非常类似，不过后腿非常发达，跳跃能力很强。
Amazingly, after only 6 months, like a miracle, Faith learned to balance on his hind legs and to jump to move forward.
令人惊讶的是，短短6个月之后，如奇迹般的，Faith学会了用两条后腿平衡并跳跃前进。
But nearly 100 million years ago relatives of modern snakes undulated through Cretaceous period waters aided by a paddlelike tail and dragging a pair of short, footless hind legs.
但是在将近1亿年前，现代蛇类的近亲们靠着它们船桨似的尾巴在白垩纪的水流里随波起伏，拖曳着它们短小而笨拙的后腿。
Deinonychus, or "terrible claw" after the sickle-shaped talon on each hind foot, stood about 11 feet from head to tail and was a lithe predator.
这种被称为恐爪龙(Deinonychus)的恐龙后足上存在镰刀般的利爪，从头到尾的身长约为3.3米，是一种非常敏捷的掠食者。
Deinonychus, or "terrible claw" after the sickle-shaped talon on each hind foot, stood about 11 feet from head to tail and was a lithe predator.
这种被称为恐爪龙(Deinonychus)的恐龙后足上存在镰刀般的利爪，从头到尾的身长约为3.3米，是一种非常敏捷的掠食者。
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