Lions — Male lions often kill and sometimes eat cubs that aren’t their own to bring females back into heat. Hamsters — Mothers may eat their young if they feel stressed, threatened, or if the babies ...

Pregnant fish can also get “baby brain" - just like human moms-to ... Viviparous species include popular aquarium fish such as guppy, molly and platy. Study author Tiffany Ernst said: “We ...

Like guppies, molly fish are available in all sorts of colors ... These fish are very easy to breed, and they will definitely produce some babies if you keep both sexes. It’s best to keep ...