From our perspective, guppies lead simple lives—eating, reproducing, and, after a couple of years, dying. Apply a little evolutionary pressure, though, and they can evolve larger brains that make them ...

Forget everything you know about feeder guppies—this one is an absolute unit. Watch it dwarf the others and go wild at feeding time. It’s not just big… it’s insane. Fort Stewart active shooting, base ...

Guppies are a small, pretty species of fish that are extremely popular for home aquariums. While they’re fun in captivity, in the wild they can cause major trouble. Native to South America, guppies ...