读生物学通报1953年1-2月号,刊载北京大学生物系张宗炳先生的“关于种内无门争的几个问题”一文中所提出的答案,关于“蚂蚁打架”、“雌蜘蛛吃雄蜘蛛”(尤其是交尾后的雄螳螂自己送给雌螳螂吃,我曾作过试验)等等问题,我虽同意张先生的解答,我认为是正确的.不过关于“猫吃小猫”的答案,我有点意见. 远在1928年的冬天,母亲曾和我说过一旬谚语:“人老思儿,猫老吃儿”…….这时就引起我研究老猫吃小猫这一个问题的兴趣,但始终没有能得一个满意的结论.1939年秋天在湖北均县草店镇一家饭馆子里,适值老猫下了小猫一群孩子争着要看,一位老太太说:“这个大猫老了,看不得,你们看了它会吃小猫的.待小猫长大了送给你们玩.现在不要看.”这时又引起我旧日的疑问,不独向这位老太太问了好久,而且见到年长的、家里畜养猫的人就问.大概都提出相同的答案:“老猫生小猫的时候不能看,人要 Read the Bulletin of Biology 1953 January-February issue, published by the Department of Biology, Peking University, Mr. Zhang Zongbing “on the kinds of problems without a fight” in his article a text on the “ant fight”, “female spider eat male Spiders ”(especially after the mantis mate to the female praying mantis to eat, I have tried) and so on, and I agree with Mr. Zhang’s answer, I think it is correct, but on the“ cat to eat kittens ” Answer, I have a little opinion far away in the winter of 1928, my mother once told me a ten-day proverb: “people old think children, cats eat old.” ... At this time I was attracted by the cat to eat a cat Problem of interest, but has not been able to get a satisfactory conclusion in the autumn of 1939 in Hubei Kuxian Caodian town, a restaurant, appropriate value of the cats under the kitten a group of children competing to see, an old lady said: This big cat is old, can not see, you read it will eat the kitten.When the kitten grew up for you to play.Now look now. "And then caused my old doubts, not alone to the old The wife asked for a long time, and to see the older, cats at home who asked, probably have made the same answer: When the cat had kittens can not see a man