We've all been there. You eat a Big Mac or an ice cream cone, and your stomach disagrees with some of the choices you've made. The same can be true for animals. A new study finds one group of junk ...

Believed to originate from North Africa, the roughly 230 primates are the main attraction in the British exclave of 30,000 people that borders southern Spain, according to the Gibraltar Ornithological ...

13.3-million–13.6 million-year-old fossils from an extinct relative of the howler monkey show signs of being the first leaf-eating primate in South and Central America. Fossils from jaws of Stirtonia ...