Endler also observed differences in the distribution of guppy predators, and in the color and size of gravel in different stream locations. Endler photographed hundreds of guppies and carefully ...

Male guppies have amazing color patterns, and many breeds have really fancy fins, too. Female guppies might not be as boldly marked as the boys, but they are still great-looking fish. However ...

So if camouflage confers such an obvious survival benefit to prey species like guppies when it comes to predator avoidance, what possible advantage could there be to sporting colors and patterns ...