Researchers hoping to learn why African freshwater cichlids carry newborn babies in their mouths discovered something even more bizarre: they devour some of the young offspring in the process.

Parrot Cichlids Credit: Wikimedia Commons It’s hard not to smile at a parrot cichlid. Their round bodies and oddball mouths already look animated—but they also behave that way.

You probably don’t think of fish being particularly affectionate, but this one is shattering that stereotype. A blood parrot cichlid flares his gills and swims from side to side every time his ...