无情淘汰不合适的后代也可能发生于胎儿开始发育阶段。

The ruthless winnowing of inappropriate offspring can, it seems, also take place well after a fetus has started developing.

youdao

无情淘汰不合适的后代也可能发生于胎儿开始发育阶段。

The ruthless winnowing of inappropriate offspring can, it seems, also take place well after a fetus has started developing.

youdao