SSS 2012-01-31
时间：2018-12-24 作者：英语课 分类：Scientific American(一)月
To a female orb 1 web spider, a suitable male can look like a mate and meal. For these spiders, the dating game has turned into a deadly dance of evolutionary 2 one. the female spiders can choose when to cut off their relations by eating her partner or kicking him out. The males do unlikely strategy to make sure they have some say in the matter: self-castration. Males are able to leave part or all of their organ inside of a female, which decreases the odds 3 the femal will be able to mate again. But new research shows that when a male leaves his whole , his likelyhood of fathering the next batch 4 of eggs is much higher. Why? His parting gift keeps on giving even after he is gone. This remote copulation technique actually boosts the amount and speed of sperm 5 transfered to the female. The behavior is described in the journal biology letters. So for these unlucky fellows, it is better to have loved and lost.
- The blue heaven,holding its one golden orb,poured down a crystal wash of warm light.蓝蓝的天空托着金色的太阳，洒下一片水晶般明亮温暖的光辉。
- It is an emanation from the distant orb of immortal light.它是从远处那个发出不灭之光的天体上放射出来的。
- Life has its own evolutionary process.生命有其自身的进化过程。
- These are fascinating questions to be resolved by the evolutionary studies of plants.这些十分吸引人的问题将在研究植物进化过程中得以解决。
- The odds are 5 to 1 that she will win.她获胜的机会是五比一。
- Do you know the odds of winning the lottery once?你知道赢得一次彩票的几率多大吗？