该句有些恐怖，不知网友从哪里找来的这个句子？

The practice of infanticide, and suicide among the old people, seems to have been a factor of survival of food scarcity.

【翻译】杀害婴儿的做法，以及老年人自杀现象，似乎已经是因粮食短缺而设法生存的一个因素。

survival of food scarcity：度过粮食缺乏的难关而生存下来。