This article was originally featured on The Conversation. After four years of digging for fossils in a churchyard in York, Pennsylvania, amateur paleontologist Chris Haefner made an intriguing find.

With a new database of medical images, zoo and wildlife vets can finally see what healthy uncommon animals, from rhinos and tamarins to pangolins and sea stars, should look like on the inside. With a ...

PHILADELPHIA (WPVI) -- A dog rescued from Southwest Philadelphia is on his way to recovery. Main Line Animal Rescue said a concerned citizen stumbled upon the dog tied to a tree over Easter weekend.

From alligators to ostriches, the Anthropology Department's Vertebrate Osteology Collection is one of the largest of its kind in the U.S. "We have over 12,000 vertebrate specimens in our collections.

British geologists have found the fossil of the earliest known predatory animal with a hard shell. The 560-million-year-old specimen is the first of its kind, but it is related to the cnidarians, a ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A skeleton ...

Some animals seem to bend the rules of biology, and even physics, with skeletons that push the limits of what bones can do. From creatures that squeeze through impossibly tight spaces to those that ...