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时差N小时 男性的未来

时间:2021-05-13 08:15来源:互联网 提供网友:nan   字体: [ ]
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    (单词翻译:双击或拖选)

Yael:What's the matter, Don? You look worried.

雅艾尔:发生什么事了,唐?你看起来很担忧。

Don:Well, Yael, you know how people are always predicting that one day women will be able to have babies without men? It turns out that some species of the Whiptail lizard1 have figured out how to do this and completely eliminated the male sex.

唐:嗯,雅艾尔,人们通常预测,如果有一天没有男人,女人也可以自己生孩子,你知道是怎么回事吗?事实证明鞭尾蜥蜴已经做到这一点,并将雄性蜥蜴完全消灭掉了。

Yael:You mean that the species is all female?

雅艾尔:你是说所有的鞭尾蜥蜴都是雌性?

Don:Exactly. The females have the ability to lay eggs that hatch and grow into healthy lizards2 without needing to be fertilized3 by a male. The offspring are exact and complete genetic4 duplicates of the mothers.

唐:正是这样。雌性鞭尾蜥蜴能不通过受精就产卵并孵化出健康的小蜥蜴。而其后代的基因与母亲的基因完全一致。

Yael:So the females are cloning themselves.

雅艾尔:那么说雌性蜥蜴是在克隆自己。

Don:That's right. And if that weren't enough, the female lizards take turns role-playing. They perform a mating ritual in which one lizard acts like the male, and the second lizard acts like the female. The ritual causes the lizard acting5 as the female to ovulate and lay her eggs. Then, a few weeks later, the two lizards switch roles and repeat this process so that the second female will be able to ovulate and lay her eggs.

唐:说得对。如果那样还不够的话,雌性蜥蜴会轮流进行角色扮演。她们进行一个交配仪式,其中一个扮演雄性,另一个扮演雌性。这种仪式会引起扮演雌性角色的蜥蜴排卵并产卵。然后过几个星期,两只蜥蜴再交换角色,重复这种交配仪式,这样另一只雌蜥蜴就可以排卵,产卵了。

Yael:That is strange.

雅艾尔:太奇怪了。

Don:And it raises a lot of interesting questions. For example, it's not clear how well an all-female species can evolve and adapt to environmental changes. A species' survival depends in part on variation among its members. If all the members of a species are identical, chances are greater that something like a change in the climate or a disease will wipe them all out.

唐:这也引发了许多有趣的问题。例如,对于这种全雌物种如何更好地进化以适应环境变化目前还不清楚。一个物种的生存要部分依靠成员的变异。如果所有的成员基因都一模一样,那么一遇到气候变化或者灾害,她们全军覆没的机会就很大。

Yael:So it might be a little early to do away with males.

雅艾尔:所以排除雄性还为之过早。

Don:Well, you know what they say. You can't live with them.

唐:嗯,你知道她们是怎么说的。你没办法和他们一起生活。

Yael:You can't live without them.

雅艾尔:但你的生活不能没有他们。


点击收听单词发音收听单词发音  

1 lizard P0Ex0     
n.蜥蜴,壁虎
参考例句:
  • A chameleon is a kind of lizard.变色龙是一种蜥蜴。
  • The lizard darted out its tongue at the insect.蜥蜴伸出舌头去吃小昆虫。
2 lizards 9e3fa64f20794483b9c33d06297dcbfb     
n.蜥蜴( lizard的名词复数 )
参考例句:
  • Nothing lives in Pompeii except crickets and beetles and lizards. 在庞培城里除了蟋蟀、甲壳虫和蜥蜴外,没有别的生物。 来自辞典例句
  • Can lizards reproduce their tails? 蜥蜴的尾巴断了以后能再生吗? 来自辞典例句
3 Fertilized 0f66e269f3e72fa001554304e59712da     
v.施肥( fertilize的过去式和过去分词 )
参考例句:
  • The study of psychology has recently been widely cross-fertilized by new discoveries in genetics. 心理学研究最近从遗传学的新发现中受益匪浅。
  • Flowers are often fertilized by bees as they gather nectar. 花常在蜜蜂采蜜时受粉。
4 genetic PgIxp     
adj.遗传的,遗传学的
参考例句:
  • It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
  • Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。
5 acting czRzoc     
n.演戏,行为,假装;adj.代理的,临时的,演出用的
参考例句:
  • Ignore her,she's just acting.别理她,她只是假装的。
  • During the seventies,her acting career was in eclipse.在七十年代,她的表演生涯黯然失色。
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