The three-spined stickleback (Gasterosteus aculeatus) has emerged as a pre-eminent model for studying adaptive evolution and the mechanics of speciation. Originally marine, sticklebacks have ...

Why are there so many species of coral reef fish? According to a new study, it's because about 50 million years ago, some fish figured out how to bite food from hard surfaces. Evolution doesn't ...

Experimental studies of microbial evolution have largely focused on monocultures of model organisms, but most microbes live in communities where interactions with other species may impact rates and ...