Enjoy these fascinating swallowtail butterfly facts. A female black swallowtail can lay up to 400 eggs in her short life. Check out six common types of swallowtail butterflies you should know.

It’s a diverse family, with more than 500 swallowtail butterfly species fluttering over six continents. Most are tropical, but about 25 kinds are found regularly in the United States and Canada.

In 1976, the Schaus’ swallowtail butterfly became one of the first insects to be listed under the U.S. Endangered Species Act, Cabrera says. This critically endangered butterfly prefers higher ...

A state butterfly may be on the cards for Michigan. A house bill was proposed on Thursday, March 27 that would designate the black swallowtail butterfly as the official state butterfly.