"Not using pesticides in your yard can go a long way." Experts celebrate dramatic comeback of rare species in unlikely ...

Alcon introduced the Clareon PanOptix Pro trifocal IOL, which will be commercially available in the U.S. in May, for patients ...

Mountaintops host some of the world's most diverse butterfly species, but climate change could transform these habitats into ...

"Blue balls" is a slang term for a medical condition called epididymal hypertension. This condition occurs when prolonged sexual arousal without ejaculation causes fluid to build up in the testicles.

U.S. Fish and Wildlife Service via Flickr under CC BY 2.0 Butterfly populations in the United States have dropped by almost a quarter in the last two decades, according to a new analysis published ...

New research shows butterfly populations have fallen dramatically over the past two decades, but there’s a lot you can do to help these fluttering flower-lovers, even if all you’ve got is a ...