A Michigan House bill aims to designate the black swallowtail butterfly as the official state butterfly, highlighting its prevalence and beauty.

A research team has identified a new species of tiger swallowtail butterfly living in eastern parts of North America. In their study, published in the journal ZooKeys, Julian Dupuis, B.

The Schaus’ swallowtail butterfly lives in far South Florida and is incredibly rare. But in a surprise twist, more of them are found in years after a hurricane. Here’s a look at why ...