Wes Siler is your guide to leading a more exciting life in the great outdoors. As Outside’s outdoor lifestyle columnist, he writes about the intersections of science, news, politics, gear, vehicles ...

"A worm ... got into my brain and ate a portion of it and then died." These are words nobody wants to say. They were spoken by a U.S. presidential candidate ...

This story was originally published by Grist. Sign up for Grist’s weekly newsletter here. Proof of Concept is a video series profiling the science and scientists behind some of the environment’s most ...

Scientists have found over a dozen parasitic worms in the eyes of a black bear, renewing fears that humans could face an emerging danger from the tiny worms that can cause blindness. The black bear ...

A parasitic worm "shot-gunning" the brains of U.S. moose could be causing population decline, a new study found. The worm, named Elaeophora schneideri, has been infesting the animals' brains and ...

Roundworms, also known as nematodes, are a leading cause of parasitic infection worldwide, causing painful swelling, severe abdominal pain and even blindness. Now, scientists say that viruses carried ...