人的胳膊与四肢动物的前肢相应。
关节，肘部鸟或四肢动物的关节，相当于人的肘。
A joint, as of a bird or quadruped, corresponding to the human elbow.
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.
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.
你能看到一些没有手的人，还有一些没有手也没有脚，还有一些失去了手指、面颊、耳朵和鼻子，还有人像动物一样用四肢爬行。
You could see some men without hands, others without hands and feet, others deprived of fingers, face, ears and noses, others crawling like quadrupeds.
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.
有一种理论认为滑行节省体力。因此研究人员用飞鼯猴——一种来自东南亚的哺乳动物，当它们滑行时会伸展出四肢，变成一张巨大的翼膜。
One theory suggests gliding saves energy. So researchers tested that idea using colugos-mammals from Southeast Asia that turn into giant skin sails when they stretch out their legs.
没有四肢不仅更适合游泳，也更适合钻洞。这也引发了关于爬行类动物进化的问题。
Not only is it more efficient to swim without limbs, burrowing without legs is also better, and this raises questions about the twists and turns of reptilian evolution.
电影中的人猿比原版中的更像我们印象中的那种生物，他们更具攻击性也更野性难驯，他们仍用四肢行走，生气或兴奋时就会发出我们在动物园听到的猩猩的那种嚎叫。
The apes are more aggressive and more obviously animals than in the original film; they still frequently move on all fours and emit fierce shrieks whenever angry or excited.
1948年，一具有2400年历史的斯基台男性干尸在西伯利亚的冰层中被发现，他的四肢和躯干上都有华丽的神秘动物的图案。
In 1948, the 2, 400 year old body of a Scythian male was discovered preserved in ice in Siberia, his limbs and torso covered in ornate tattoos of mythical animals.
在波兰东南部的圣十字山的一座废弃的采石场，（科学家）曾发现过动物脚印的化石，经鉴定，为3.95亿年前形成，比发现的最古老的四角龙（一种拥有四肢而非鳍的脊椎动物）化石要早1.8亿年。
In early January 2010, another group of scientists found the oldest fossilized footprints made by a four-legged creature
贝德格勒特凶猛而富于攻击性，有着强有力的四肢和结实而锋利、足以撕开任何一种动物皮肉的利齿。
Beddgelert was a fierce and aggressive hunter with powerful limbs and strong teeth sharp enough to tear away the flesh of any creature.
为探寻这种差异，马萨诸塞大学阿姆赫斯特校区的伊丽莎白·都蒙研究了鸣鸟、啮齿动物和蝙蝠的骨架及四肢的骨头。
To sort out this seeming discrepancy, Elizabeth Dumont of the University of Massachusetts Amherst studied the skulls and limb bones of song birds, rodents and bats.
一些动物用四肢行走，如老虎、狮子、大熊猫和狗熊。
Some animals can walk by four legs, such as tigers, lions, pandas and bears.
黑熊是北美最大型的哺乳动物之一，四肢着地肩高约有0.91米，身长约1.83米，体重大多在270公斤以上。
Black bears are one of the largest mammals in North America. They're about three feet high at the shoulder and six feet long and can easily weigh 300 pounds.
幸运的是，它被一个动物组织发现，为了挽救它的生命，不得已对四肢实施了截肢手术。
Thankfully, she was found by an animal welfare group and in a bid to save her life they amputated all four PAWS.
指人或动物的整个生理组织，有时特指躯干和四肢。
Refers to the physical system of person or animal, and sometimes stands for trunk and arms and legs.
他们的四肢好像要比其他动物要伸得更直，至少在行走的时候是这样的。
And they seem to hold their legs straighter than other animals do, at least when they walk.
爬行动物，身体细长，体上有鳞，无四肢。种类很多，有的有毒，有的无毒。以蛙、鼠为食，大蛇亦吞食大兽类。
Reptiles, body slender, scaly body, no limbs. Many types, some toxic, some non-toxic. With frogs, rats for food, the serpent has swallowed a large animal.
偶尔，动物出生时会有突变，像是多出四肢、奇怪的畸形或甚至多出几颗头。
From time to time, animals are born with mutations like extra limbs, strange deformities, or even additional heads.
在本教程你将学习一个非常有用的，简单的技术，将帮助您随时随地与动画从2到200四肢行走的动物一周期。
In this tutorial you will learn a very useful and simple technique that will help you animate a walk cycle for creatures with anywhere from 2 to 200 limbs.
这些基因上的多种变异均导致动物四肢畸形，提示这些基因在肢体发育中起重要作用。
Variousmutations in the formin locus result in limb deformity, suggesting that these genes play indispensable roles in the limb development.
这些动物之中，有的改变了形象或者失去四肢，但？们的共同祖先都具有四肢，两只在前、两只在后，位于原本是鱼鳍拍动的地方。
Some of these animals have modified or lost their limbs, but their common ancestor had them? Two in front and two in back, where fins once flicked instead.
生活在寒冷地方的动物其四肢倾向于长得短而粗——就是耳朵和尾巴也要小一些。
Animals that live in cold climates tend to have stubby limbs-shorter arms and legs-even smaller ears and tails.
方法建立家兔四肢陈旧性动脉损伤的动物实验模型，在股动脉损伤15、30、45、60、75、90天后，用自体静脉移植修复。
Methods Autologous venous transplantation was performed in rabbit of old arterial injury in the extremities on 15, 30, 45, 60, 75 and 90 days after injury.
哺乳纲中的偶蹄目动物，是因四肢的蹄为偶数而得名，现存于世界上的包括了牛这类反刍动物，以及骆驼和猪等。
Experts agree that hippos belong to the mammalian order artiodactyla, a group of even - toed, hoofed creatures whose extant representatives include camels, pigs and ruminants such as cows.
其他所有的四肢行走动物，例如狗，猫和马，这些功能被分配到不同肢体上，后肢主要负责驱动前进，而前肢则起到类似刹车的作用。
All other four-legged animals, like dogs or cats or horses, divvy up those duties. With their rear legs powering the push forward, and their front legs acting as brakes.
它肌肉发达的身体看上去很像猫科动物，强壮的四肢顶端长着巨大的爪子，爪子上有鳍，使这种生物能在深海中移动。
Its heavily muscled body is almost feline in appearance, with sinewy limbs terminating in massively finned claws that propel the creature through the depths.
它肌肉发达的身体看上去很像猫科动物，强壮的四肢顶端长着巨大的爪子，爪子上有鳍，使这种生物能在深海中移动。
Its heavily muscled body is almost feline in appearance, with sinewy limbs terminating in massively finned claws that propel the creature through the depths.
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