From Philadelphia to Kosovo, zoo animals are getting a taste of Halloween by snacking on and playing with pumpkins.

Invasive species are wreaking havoc on ecosystems around the world. US company Inversa is turning some of them into leather, which it says is more environmentally friendly than traditional leather.

Six species of North American bats glow under ultraviolet lighting, according to a new study. Researchers don’t know why certain mammals exhibit this odd trait.

Two recently examined fossils suggest that Australia’s First Peoples valued big animals for their fossils as well as for their meat, according to a new study.

Jane Goodall, whose lifelong work as a primatologist helped broaden the world’s understanding of animal behavior and emotions, has died, her institute said Wednesday. She was 91.

CNN has teamed up with Pledge, the award-winning fundraising platform trusted by millions, to power giving for this year’s Heroes. Supporters can learn more and make online donations to the Top 5 CNN ...

With hand, foot and mouth disease, or HFMD, spreading through certain parts of the country, there are certain symptoms to look for and ways to treat the illness.

A man who lived with a genetically modified pig kidney for a record 271 days had the organ removed and will return to dialysis.