In the continual arms race between parasites and their hosts, innovation was thought to be the key to a successful attack or defense that one-ups the competition. But sometimes, as in the corporate ...

A parasitic wasp that preys on the young of a prolific fruit fly pest demonstrates both molecular evolution and behavioral adaptations in the face of ecological pressures, according to new research.

Many flies are plagued by parasitic wasps, which lay their eggs in fly larvae, turning them into surrogate wombs for wasp larvae. One common fly has successfully fought off its wasp predator by ...