If spiders had nightmares, the larvae of ichneumonid wasps would have to star in them. The wasp lays an egg on the back of an orb weaver spider, where it grows fat and bossy, and occupies itself with ...

A common expression foreshadowing the topic of this discussion might be, “What goes around, comes around." For instance, if spiders are the worst nightmares of flies, then, to go around, wasps must ...

A bee in your bonnet has nothing on a wasp in your belly. Mississippi scientists have discovered a new species of wasp that lays eggs in living flies so the babies burst out of their bellies, Nature ...

An ancient wasp may have used an odd structure at its rear end to capture insects and lay its eggs on or inside of them, according to a new study published Thursday in BMC Biology. Researchers named ...

A bite from this arachnid won't give you as many problems as black widow bites, but it's still no fun. [Shutterstock/Courtesy] Israeli researchers have discovered that brown widow spiders, a global ...