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,

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

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

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