Fruit flies are generally highly susceptible to parasitic wasps, but some have stolen a gene from bacteria that makes them resistant. This adult fly, Drosophila melanogaster, has two cysts (made dark ...

If you see a gray, papery cylinder hanging from a tree branch, eave of your house, or some other spot on your property, it ...

Acid-filled pitchers complete with fangs. Labyrinthine chambers decorated with bristles. Leaves that snap shut in less than a ...

Paper wasps build nests in spring near eaves, decks, and grills. Here’s how to identify them, when to remove a nest, and safe ...

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 ...