Q: "Is there any living species of animals that feed on their young? A: A lot of them. Many invertebrates (like insects and spiders) will eat their young... most fish will eat the young as they do not distinguish their young from others. Some mammals will kill and eat the young if stressed. Hamsters do it all the time. As a kid I raised mink and we had problems. In a thunderstorm the female may devour the young. Much of the cannibalism among mammals is caused by stress and not hunger." (AllExperts. com)