Chimpanzee
The most striking single fact about chimpanzees is the flexibility of their social life, the lack of any rigid form of organization. It represents about as far a departure from the baboon type of organization as one can find among the higher primates, and serves to emphasize the great variety of primate adaptations. Chimpanzees are more human than baboons, or rather they jibe better with the way we like to picture ourselves, as free-wheeling individuals who tend to be unpredictable, do not take readily to any form of regimentation, and are frequently charming. Two researchers have described what they found during more than eight months spent among chimpanzees in their natural habitat the forest:We were quite surprised to observe that there is no single distinct social unit in chimpanzee society. Not only is there no family or harem organization; neither is there a troop organization - that is to say, no particular chimpanzees keep permanently together. On the contrary, individuals move about at will, alone or in small groups best described as bands, which sometimes form into large aggregations. They leave their associates if they want to, and join up with new ones without conflict. The general practice is best described as easy come, easy go, although there are certain group-forming tendencies. As a rule chimpanzees move about in one of four types of band: adult males only; mothers and offspring and occasionally a few other females; adults and adolescents of both sexes, but no mothers with young and representatives of all categories mixed together. The composition of bands may change a number of times during the course of a day as individuals wander off and groups split or combine with other groups. On the other hand, certain individuals prefer one anothers company. One of the researchers observed that four males often roamed together over a four-month period, and mothers often associated with their older offsprings.
2017届高三英语一轮复习课时作业50:语法专练十之定语从句
2017届高三英语一轮复习课时作业9:Unit 4《Wildlife protection》(新人教版必修2)
2017届高三英语一轮复习课时作业11:Unit 1《Festivals around the world》(新人教版必修3)
2017届高三英语一轮复习课时作业10:Unit 4《Wildlife protection》(新人教版必修2)
2017届高三英语一轮复习课时作业55:语法专练十五之交际用语
2017届高考英语一轮复习精品课件:Unit 5《Theme parks》(新人教版必修4湖北专用)
2017届高三英语一轮复习课时作业1:Unit 1《Friendship》(新人教版必修1)
2017届高三英语一轮复习课时作业21:Unit 1《Great scientists》(新人教版必修5)
2017届高考英语一轮复习精品课件:Unit 1《Art》(新人教版选修6湖北专用)
2017届高考英语一轮复习精品课件:Unit 4《Astronomy the science of the stars》(新人教版必修3湖北专用)
2017届高三英语一轮复习课时作业4:Unit 4《Earthquakes》(新人教版必修1)
2017届高三英语一轮复习课时作业54:语法专练十四之主谓一致
2017届高三英语一轮复习课时作业7:Unit 2《The Olympic Games》(新人教版必修2)
2017届高考英语一轮复习精品课件:Unit 1《Festivals around the world》(新人教版必修3湖北专用)
2017届高三英语一轮复习课时作业2:Unit2《English around the world》(新人教版必修1)
2017届高三英语一轮复习课时作业47:语法专练七之动词的时态和语态
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2017届高三英语一轮复习课时作业17:Unit 2《Working the land》(新人教版必修4)
2017届高三英语一轮复习课时作业51:语法专练十一之名词性从句
2017届高三英语一轮复习课时作业38:Unit 3《Inventors and inventions》(新人教版选修8)
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2017届高三英语一轮复习课时作业12:Unit 2《Healthy eating》(新人教版必修3)
2017届高三英语一轮复习课时作业29:Unit 4《Global warming》(新人教版选修6)
2017届高三英语一轮复习课时作业45:语法专练五之介词及介词短语
2017届高考英语一轮复习精品课件:Unit 4《Making the news》(新人教版必修5湖北专用)
2017届高三英语一轮复习课时作业19:Unit 4《Body language》(新人教版必修4)
2017届高三英语一轮复习课时作业31:Unit 1《Living well》(新人教版选修7)
2017届高三英语一轮复习课时作业42:语法专练二之冠词
2017届高三英语一轮复习课时作业46:语法专练六之动词及动词短语
2017届高三英语一轮复习课时作业26:Unit 1《Art》(新人教版选修6)
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