字神帝國英語天地

上週托福閱讀考到了這篇：Sociality in Animals
動物中的社交，這篇從2014出現後，就一直重覆考。
2019.05.04，2017.12.17，2017.09.24，
2017.09.23下午場，2015.04.18，2014.07.06

動物中的社交中文機經：
群居是無脊椎動物進化的偉大壯舉之一，但只有很少的群居動物具備社會性，有脊椎動物也是一樣。社會性有一定的好處，比如抵抗外敵，建設棲息地，為生存帶來便利等。與此同時也意味著群體要付出一定的代價，其中最明顯的就是同一棲息地內部同物種之間的競爭，但是更大的回報在於狩獵與防禦時的合作性。

真題原文
Sociality in Animals
Social insects represent the high point of invertebrate evolution. Some species live in communities of millions, coordinating their building and foraging, their reproduction, and their offspring care. Yet sociality is found in only a few species of insects, and is rare among vertebrates as well: wildebeest (large antelope) and lions are the exception rather than the rule. Nearly all fish, amphibians, reptiles, birds, and mammals are solitary, except when courting and mating. Birds and mammals usually rear their young, but year-round family groups are almost unknown, though they are intensely studied where they do exist. The same is true for insects.
更完整的英文原題請見：http://bit.ly/2lvFNDo