A study conducted by University of Utah genetics researchers shows that the steroid hormone ecdysone controls an important phase in the embryonic development of insects, providing an unexpected ...

Like humans, insects go through puberty. The process is known as metamorphosis. Examples include caterpillars turning into butterflies and maggots turning into flies. But, it has been a long-standing ...

Starvation typically has dire consequences for an organism's growth. In the tobacco hawkmoth, tissues starved during the last stage of larval development stop growing because they lack the proper ...

A hormone which controls growth has been discovered by Carroll M. Williams, professor of Biology. The discovery was par of five year series of experiments which has done much toward the understanding ...

Complete metamorphosis transforms caterpillars into butterflies, reshaping not only the bodies of the insects but their behaviors and identities. New work reveals in detail for the first time how ...

Metamorphosis in crustaceans / John D. Costlow, Jr. -- Metamorphic changes in insects / Joan Whitten -- Control of hormone production in insects / William S. Herman -- Biochemistry of insect ...

A NEED has been felt for a precise terminology to distinguish four types of animal hormones by their actions 1,2. (1) ‘Metabolic’ hormones stimulate or inhibit clearly defined metabolic processes.

RIVERSIDE, Calif. -- Like humans, insects go through puberty. The process is known as metamorphosis. Examples include caterpillars turning into butterflies and maggots turning into flies. But, it has ...

Complete metamorphosis seems to have arisen in insects only around 350 million years ago, before the dinosaurs. Most researchers now believe that metamorphosis evolved to lessen the competition for ...