A research team of scientists from Freie Universität Berlin and Princeton University has provided insights into the origins of complete metamorphosis in insects. More than 60% of all animal species ...

John E. Woodmansee Photo: Tobacco hornworm on a tomato plant that has been attacked by a parasitic Braconid wasp. The white capsules on its back are the pupal stage of the tiny wasp. Braconid larvae ...

Discovered at La Brea Tar Pits, the pupa helps reveal clues to what the environment was like in Southern California during the Pleistocene Epoch. Micro CT scans of (A) a dorsal view of a male ...

The transformation from caterpillar to butterfly is one of the most exquisite in the natural world. Within the chrysalis, an inching, cylindrical eating machine remakes itself into a beautiful flying ...