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今年是猴年。说到猴子,恐怕没人会觉得陌生吧。和咱们人类一样,猴子也是灵长类生物的一员。众所周知,灵长类是动物界最高等的类群,特点是:大脑发达,眼眶的方向朝前,手指和脚趾可以分得很开,大拇指极为灵活,能和其他手指做出抓握的动作。2007年,美国科学家理查德·吉布森对印度猕猴进行了DNA序列研究,发现猕猴和人类的DNA序列相似度竞达到93%。虽然与相似度高达98%的黑猩猩相比还是差了一些,但若说猴子是人类的表亲,是当之无愧的。
This year is the year of the monkey. Speaking of monkeys, I am afraid no one will feel strange. Like we humans, monkeys are also members of primates. It is well-known that primates are the highest taxon in the animal kingdom. They are characterized by a well-developed brain with forward orbital orientation. The fingers and toes can be very open and the thumbs are extremely flexible and able to grip with other fingers. In 2007, American scientist Richard Gibson conducted a DNA sequence study on Indian macaques and found that the DNA sequence similarity between macaques and humans reached 93%. Although compared with chimpanzees with similarities of up to 98%, the monkey is a cousin of mankind and is well deserved.