查询词典 natural selection

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.

他认为，自然选择对曾经是利他主义者的人类是有利的，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.

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。

So swim bladders evolved by further natural selection.

因此说，鱼鳔是通过深层的自然选择演化出来的。

So swim bladders evolved by further natural selection.

因此说，浮囊是通过深层的自然选择演化出来的。

The iconic myth is that Darwin became an evolutionist in the Galápagos when he discovered natural selection operating on finch beaks and tortoise carapaces, each species uniquely adapted by food type or island ecology.

标志性的看法是这样的，达尔文同学在加拉帕哥斯群岛发现了自然选择在雀喙和龟壳上的表现，每一个物种都适应于独特的食物和生态环境。

He thought that natural selection had operated on us, just as it had on fruit flies and centipedes.

他认为自然选择对我们产生了作用，正如对待果蝇和蜈蚣那样。

These nine principles underpin the awesome workings of prairies, flamingoes, cedar forests, eyeballs, natural selection in geological time, and the unfolding of a baby elephant from a tiny seed of elephant sperm and egg.

造物九律支撑着令人敬畏的自然运作：大草原，火烈鸟，雪松林，眼球，地质演变中的自然选择，乃至从幼小的精子卵子到幼象的演变。。。。。。

These nine principles underpin the awesome workings of prairies, flamingoes, cedar forests, eyeballs, natural selection in geological time, and the unfolding of a baby elephant from a tiny seed of elephant sperm and egg.

造物九律支撑着令人敬畏的自然界运作：大草原，火烈鸟，雪松林，眼球，地质时代中的自然选择，乃至从幼小的精子卵子到幼象的演变。。。。。。

Second, the movement of continents has allowed species to move, adapt to new environments, and form new species through natural selection.

大陆的移动让上面的物种跟著移动，使物种适应新的环境和透过天择形成新的物种

Second , the movement of continents has allowed species to move, adapt to new environments, and form new species through natural selection.

点；第二个则是因为陆地的移动使物种也随之移动，并使物种适应新的环境，进而透过天择形成新的物种。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。