America’s butterflies are disappearing because of insecticides, climate change and habitat loss, with the number of the winged beauties down 22% since 2000, a new study finds. The first ...

Swarms of any other insect might provoke fears of a coming apocalypse, but clouds of butterflies migrating through Southern California are captivating onlookers who are relishing the otherworldly ...

A genomic study reveals that butterflies originated in what is present-day western North America or Central America 1. The insects evolved around 100 million years ago after flowering plants ...