There are nearly 20,000 butterfly species divided into six families. They are spread across every continent except for ...

Close-up of a hickory tussock caterpillar featuring predominantly gray coloring complemented by white hairs protruding from its body, creating a fuzzy ...

Earth is home to over 20,000 caterpillar species, found in every corner of the globe except Antarctica. While most are ...

The American yellow warbler is known for its sunny-yellow plumage and sweet song.

A bright green fireball seen from Morro Bay to Truckee amazed Californians. According to the American Meteor Society, there's a clear reason why it was green.

Biologists waded through knee-high vegetation in Florida until they reached a spot where purple flowers grew in cone-like formations — then the team got out the glow-in-the dark caterpillars.

Biologists deposited caterpillars of the rare frosted elfin butterfly on its host plant, the sundial lupine, in north Florida. Photo from the Florida Fish and Wildlife Conservation Commission ...