Scientists now say that's almost precisely what happened to the dinosaurs, on a much bigger scale: the asteroid that hit Chicxulub, Mexico, is still credited with killing the dinosaurs. However, a second asteroid hit during that same era at the Nadir crater off the coast of Guinea in western Africa,

Research highlights how the meteor impact that ended the dinosaurs helped spawn the mutualistic relationship between ants and fungi, marking an early form of agriculture long before humans farmed. The

Around the same time Chicxulub marked the end of the Age of Dinosaurs, a second smaller asteroid also crashed into Earth.

For decades, the disappearance of dinosaurs has been tied to the Chicxulub asteroid, whose crater lies partly beneath Mexico’x Yucatan Peninsula. But new research has revealed that there were at least two dinosaur-killing asteroids.

Scientists have revealed images of a second massive asteroid impact called Nadir Crater buried 300 meters under the ocean floor.