A cabbage hiring wasp hitmen to protect it from a butterfly invasion sounds like the premise of a deranged children's movie. But new research shows something like that actually might happen in nature.

While attempting to research the disbursement patterns of caterpillars that would eventually turn into butterflies, Finnish researchers inadvertently introduced three parasitic wasps, and they are ...

The introduction of new species to other territories could have unforeseen consequences. According to a study published in Molecular Ecology, introducing new species to an area could bring along other ...

We're currently watching—often in horror—what happens as a virus and its hosts engage in an evolutionary arms race. Measures to limit infectivity and enhance immunity are selecting for viral strains ...