Pigs are most commonly known as barn animals but in reality, they’re one of the smartest mammals in the world. They are a fascinating species and can do more human-like things than many people ...

After years of research into xenotransplantation, the field is at a turning point—yet risks and ethical issues remain ...

U.S. Fish and Wildlife Service wants people to eat more invasive species. You can get nutria, wild pigs, carp and northern ...

The trial was part of a small — but growing — group of animal-to-human organ transplants, in a practice known as ...

Inside the human eye, the retina is made up of several types of cells, including the light-sensing photoreceptors that initiate the cascade of events that lead to vision.