In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.

The “alien” is actually a potato. Specifically, it is a purple tuber nicknamed Spudnik-1, grown and photographed by Pettit. While the photo looks like a sci-fi horror prop, it actually represents the ...

A new Nature study shows how parasite-driven inflammation in the gut activates a tuft cell to serotonin to vagus nerve pathway, helping explain why infection can suppress appetite. Study: Parasites ...

Anyone who has weathered a bad stomach bug knows the feeling: a loss of appetite that sets in and lingers, even after the initial illness. For the millions of people around the world who are ...

In a world first, China has approved a brain implant for commercial use in people with spinal cord injuries. The device is a type of brain-computer interface (BCI) and is made by the Shanghai-based ...

Add Yahoo as a preferred source to see more of our stories on Google. A tree tunnel in the Puna district of the island of Hawaii, also known as the Big Island. (Peter Unger/Getty Images) The parasite ...

The parasite that causes rat lungworm disease, long associated with Hawaii, was detected in California at the San Diego Zoo, raising concerns that the debilitating illness could become more widespread ...

SAN DIEGO — Brain-eating worms known as "rat lungworm" have been found in San Diego County, the first time the parasitic worms have been found in any state west of Texas. According to new research ...

Alien: Earth received glowing reviews from fans and critics when it touched down on FX last August, and it didn't take long before we learned that Season 2 was officially in the works. That news came ...