Guppies: Small Fish to Answer Big Questions in Ecology and Evolution

Abstract

If you have ever been to a pet store and stopped at the aquariums, you have most likely seen a guppy. Guppies come in diverse shapes and sizes. Some have large, beautiful fins, while others have bright-colored bodies. It turns out that guppies are not only popular with pet owners. Scientists find guppies to be fascinating because these fish are perfect for studying how species rapidly adapt to new environments. Next time you stop at a pet store, be sure to admire these small but interesting fish.