When Robert Sullivan, a research associate at the New Mexico Museum of Natural History and Science in Albuquerque, found some dinosaur bones in 67-million year-old Cretaceous ro...

On April 29, 2020, Earth will get an intimidating visitor — a massive asteroid called 1998 OR2. Fortunately for us, the space rock, which experts believe will be the largest one...

Researchers have long believed that all four-limbed animals or tetrapods, a group that includes amphibians, reptiles, and mammals,  evolved from an ancient group of fish known a...