We've seen in our simulations that the more brightly colored a male guppy is, the more likely he will be seen -- and eaten -- by a predator. In a simulation or in the wild, where predators are ...

To marine biologists, the guppy (scientific name Poecilia reticulata), AKA the rainbow fish or the millionfish, is one of the world’s most popular tropical fish and one of the most widely ...