虽然它并不是鸟类的祖先，但小盗龙和先前所发现的带羽毛恐龙并不相像。
Microraptor, from the Dromaeosaur family, was not an ancestor of birds, but it was also unlike any previously discovered feathered dinosaur.
我们颚部的杠杆系统以及耳中的小骨链都拜鲨鱼祖先所赐。
We owe both the lever system in our jaws and small bones in our ear to our shark ancestors.
他认为，自然选择对于那些曾经是利他主义者的人是有利的，因为我们的祖先生活在小而密集的群体中，人们的利他主义可以指望得到相互间的利益互惠。
He argues that natural selection favored humans who were altruistic because in the small, close-knit groups in which our ancestors lived, altruists could expect reciprocity.
Conrad解释道，科学家提出了三种候选物种：鬣蜥、巨蜥和小蜥蜴，它们最有可能是滑动行走的蛇的祖先。
Conrad explains that scientists have come up with three candidates—iguanas, monitor lizards, and skinks—as the most likely relatives to have made way for the slithering snake.
气温那么冷，我们的祖先只存活在非洲几个小地块上，人数曾经只有一万。
The temperatures were so cold that our ancestors survived only in small patches in Africa and at one point numbered only 10, 000.
“我们的祖先生活的圈子相对要小而紧密，所以他们可能一辈子都不会遇到人类今天面临的多样化程度，”报告作者之一艾莉森·莱顿(AlisonLenton)告诉《探索》新闻频道(Discovery News)。
"Our ancestors lived in relatively small, tight-knit communities, so they likely never encountered the level of variety that humans today confront," co-author Alison Lenton told Discovery News.
可是这位洗衣妇，尽管个子又瘦又小，却具有从她们世代农民祖先那里继承来的强健体魄。
But this washwoman, small and thin as she was, possessed a strength that came from generations of peasant ancestors.
大多数的犹太妇女在像他一样的年纪的时候身体已经很虚弱了，可是这位洗衣妇，尽管各自又瘦又小，却具有从他们世代农民祖先那里继承来了强悍的体魄。
Most Jewish women of her age were sickly, weak, broken in body. but this washwoman, small and thin as she was, possessed a strength that came from generations of peasant ancestors.
小君：我们会拜祖先，还会烧纸糊的车子和物品供他们在天堂使用。
Jun: We pray to our ancestors and burn paper cars and things for them to use in heaven.
由于该人种个头小，科学家昵称他们为为“霍比特人”祖先。
Due to its small size, scientists have nicknamed the species our "hobbit" ancestors.
这意味着，今天所有的美洲野牛都是由同一小群祖先所繁殖而来。
This suggests that all present-day bison are descended from a very small group of animals .
至今，这种从人类类猿祖先的小颅骨和宽大骨盆到现在的改变被解释为一种草食到肉食的改变。
Hitherto, the explanation for this shift from the smaller skulls and wider pelvises of man's apelike ancestors has been a shift from a vegetable-based diet to a meat-based one.
在这里，小编不得不说一句我们祖先的想象力真的太丰富了，真是不得不让人敬佩。
Here small make up have to say our ancestors imagination too rich, really really have to let a person admire.
一些科学家认为蛇从陆地上进化而来，它们的祖先是小的，穴居的蜥蜴。
Some believed that snakes evolved on land, and that their ancestors were small, burrowing lizards.
一些科学家认为蛇从陆地上进化而来，它们的祖先是小的，穴居的蜥蜴。
Some believed that snakes evolved on land, and that their ancestors were small, burrowing lizards.
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