Mud blister worms make their homes in the shells of oysters and other shellfish, where they weaken their hosts.

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 ...

Three types of parasites can cause disease in humans. They are protozoa, carried by mosquitos, helminths, such as roundworm, and ectoparasites, for instance lice and bed bugs. Parasites are organisms ...

Here’s a comforting thought: you might not actually be alone in your own body right now. Parasites are far more common than most people realize, and they don’t care about your personal boundaries, ...

Popular videos online suggest that people get parasites from food, water, or the environment, and need annual cleanses. Do we all have tiny worms wriggling around in our gut? According to supermodel ...

Parasites are organisms that live on or inside a host and feed off it to survive. Many types of parasites affect human health, including external ones such as lice and ticks and internal microscopic ...

This story originally appeared on Grist and is part of the Climate Desk collaboration. When Chelsea Wood was a child, she would often collect periwinkle snails on the shores of Long Island. “I used to ...

When Chelsea Wood was a child, she would often collect Periwinkle snails on the shores of Long Island. “I used to pluck them off the rocks and put them in buckets and keep them as pets and then ...