The number of monarch butterflies spending winter in the western U.S. dropped dramatically this year, despite moves to extend ...

In 2023, more than 16,000 butterflies were counted at one local grove. The most recent count was a tiny fraction of that.

The Smith's blue butterfly may be tiny, but it's endangered in a big way. It spends its whole life within a few hundred yards of two native plants, seacliff buckwheat and coast buckwheat — and is ...

After Hurricane Andrew ripped through South Florida in 1992, the already-scarce Miami blue butterfly ... Keys in Key West National Wildlife Refuge. Despite captive-breeding and reintroduction efforts, ...

Native to the rainforests of Mexico, Central America and South America, this bright blue butterfly has a short but stunning life. It is thought that the colour helps the males to mark their ...