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研究动物的寿命是饶有兴味的事情。与人类共同相处在自然界的那些大大小小的远亲近邻,究竟能活多久呢? 要弄清楚野外动物的寿命比较困难,由于受观测条件的限制,因而往往不能正确反映出动物的寿命。野外动物每天生活一般都很紧张,饮食不正常,几乎每种动物都有寄生虫,在受伤和有病的时候,免不了成为其它动物的食物。例如,号称“兽中之王”的狮子,到了年老体衰的时候,常被一群鬣狗所吞食;狼受伤或到衰老不能觅食时,别的狼群也会
It is interesting to study the life of an animal. How long can we live with those close relatives living in close contact with nature in large and small families? It is difficult to understand the life expectancy of wild animals. Due to the limitations of observation conditions, they often can not accurately reflect the life expectancy of animals. Wild animals live daily life are generally very nervous, eating is not normal, almost every animal has parasites, when injured and sick, inevitably become the food of other animals. For example, a lion, known as the “King of Beasts,” is often swallowed up by a group of hyenas when he is old and sick. When the wolf is injured or aging can not feed, other wolves can