Blood stains the walls of the cage where the deadly creatures are kept. They look agitated and eager to escape, but they've just been fed, and David A. O'Brochta figures it's safe to stick his hand ...

New University of Washington research shows that a regulatory gene named broad, known to be necessary for development of insects that undergo complete metamorphosis, also is key for the maturation of ...

Some insects go from egg to nymph and then to the adult stage, while others take four steps: egg, larva, pupa and adult. Most of us are quite familiar with the dramatic change from the grub-like ...

METAMORPHOSIS in the animal kingdom may be approached from two angles of vision. We may regard it solely as a preparation for the adult condition that follows upon it, or we may consider it from the ...