The asteroid which struck the earth, killing nearly all dinosaurs, hit during the spring, researchers have concluded.
The asteroid which struck the earth, killing nearly all dinosaurs, hit during the spring, researchers have concluded. U sing extremely powerful X-rays and carbon isotope records of the bones of fish that died less than an hour after the asteroid hit, experts were able to work out when the asteroid might have struck the earth. The team suggested that their findings could help to explain why some animals managed to survive the impact, while others did not. Experts searched parts of North Dakota in the United States to find fossilised paddlefishes and sturgeons that were killed as the asteroid hit the earth.
