Butterfies

Here are some photos of butterflies drinking turtle tears in the western Amazon, where the insects flock to the reptiles to ingest the sodium from their eye secretions.

It's odd for truly distinct butterfly species to be identified in the United States today.

Using a CT scanner, researchers have revealed the transformation from caterpillar to butterfly in stunning detail

Using a CT scanner, researchers have captured gorgeous, 3D images of caterpillars undergoing metamorphosis

Butterflies face much more bumpy, turbulent skies than previously thought.

Cold in the Mexico mountaintops prompts migrant monarchs to fly north.

Researchers have documented 51 different butterfly species at the U.S. military base at Guantanamo Bay.

Butterfly populations in Massachusetts have shifted north over the past two decades, likely in response to climate change.

From deformed wings and eyes to infertility, radiation has wreaked havoc on these insects.

A lifetime of research points to changes in butterfly populations due to a warming climate.