No ant can possibly know how much food everybody is collecting, how many foragers are needed, she said. An ant has to have very simple rules that tell it, OK, switch and start foraging. But an ant cant assess globally how much food the colony needs.
39;ve done perturbation experiments in which I marked ants according to what task theyre doing on a given day. The ants that were foraging for food were green, those that were cleaning the nest were blue and so on. Then I created some new situation in the environment; for example, I create a mess that the nest maintenance workers have to clean up or Ill put out extra food that attracts more foragers.
It turns out that ants that were marked doing a certain task one day switch to do a different task when conditions change.
Of about 8,000 species of ants, only about 10 percent have been studied thus far.
Its hard to generalize anything about the behavior of ants, Gordon said. Most of what we know about ants is true of a very, very small number of species compared to the number of species out there.
上面就是这篇关于ants的雅思阅读真题文章的全部内容,大家可以从这篇文章中,看到一些非常专业的,关于生物方面的词汇,虽然这些词汇不会成为考试的考点,但是了解一下相关的背景知识还是很有好处的。最后,雅思预祝大家在雅思考试中取得好成绩!
【雅思阅读真题文章:Ants】相关文章:
最新
2016-02-26
2016-02-26
2016-02-26
2016-02-26
2016-02-26
2016-02-26