Scientists have concluded that the impact that created this crater occurred 65 million years ago. The date corresponds perfectly to the date of the dinosaur extinction. Rare Metal The metal ...

Although they came into their own only after the extinction of the dinosaurs some 65 million years ago, mammals had maintained ... One way it occurs is in response to events that free up ...

A few fossilized body parts hinted at an enigmatic bird's close ties to waterfowl like ducks and geese. A newfound skull may bolster that idea.

The asteroid is believed to have been 20 times larger than the one that wiped out the dinosaurs 65 million years ago ...

Approximately 66 million years ago, the Chicxulub asteroid ... a 200-kilometer-wide impact crater. This impact triggered a chain reaction of destructive events including a rapid climate change ...

Sun-blocking dust from asteroid impact drove the dinosaur extinction The Chicxulub impact 66 million years ago filled the sky ... s eventual extinction (and the evolution of surviving dinosaurs ...