Learn to identify a great spangled fritillary. Look for glints of silver on large orange wings to identify these butterflies ...

Male butterflies seek out mates with the same wing color as they find them more attractive, reveals new research. Genetics, vision and neural processing are all linked to mating behavior in Heliconius ...

This is the season when fluttering butterflies are a common sight on my way to work. When two butterflies dance around each other in circles, "whirling flight" is the term used by entomologists.

A year-round resident of New Mexico's high mountain meadows, the highly imperiled Sacramento Mountains checkerspot butterfly relies wholly on the integrity of its remarkably limited range. This ...