It is widely agreed that such an object -- 10 kilometers across -- struck just off the coast of the Yucatan peninsula 65 million years ago. According to scientists who maintain that dinosaur ...

Then, 65 million years ago, the dinosaurs vanished from the world forever. In the search for answers to what killed the dinosaurs, scientists have looked beyond fossils. Geological evidence also ...

How do scientists study the behavior of dinosaurs, who died 65 million years ago? After all, dinosaur fossils are rare enough as ... But right now it can only tell us so much—it just tells us the ...

How do scientists study the behavior of dinosaurs, who died 65 million years ago ... color of the individual animal at the time of its death. Studying more specimens of the same species could ...

Sun-blocking dust from asteroid impact drove the dinosaur extinction The Chicxulub impact 66 million years ago filled the sky with fine silicate dust, which blocked out sunlight and lingered for ...

paddlefish and sturgeon swam in a river that meandered through a flourishing landscape populated by mighty dinosaurs and small mammals at North Dakota’s southwestern corner. Death came from ...