The asteroid which killed nearly all dinosaurs struck the Earth during the spring, according to new research. To reach their conculsions, researchers searched parts of North Dakota in the US to find fossilised paddlefishes and sturgeons that were killed when the asteroid made ...
B.It's mainly about how some other animals survived.C.It's mainly about when man appeared on Earth.D.It's mainly about why an asteroid hit the earth. 相关知识点: 试题来源: 解析 (1)细节理解题。根据第一段What caused the dinosaurs to disappear from the face of the earth?Did they die...
Researchers suggest that if the asteroid had struck a few million years earlier, when the range of dinosaur species was more diverse and food chains were more robust, or later, when new species had time to evolve, then they very likely would have survived. An international team of palaeontolog...
The author believes that there is not enough data to extrapolate rules why survivors of mass extinction do not last in the long term. He cites various species such as the multituberculates and the brachiopods which survived the asteroid impact and the Permian-Triassic extinction, respectively, ...
These data show that a relatively diverse assemblage of dinosaurs survived the end-Cretaceous asteroid-impact extinction event of 65.5 Ma. The San Juan Basin's Paleocene dinosaur fauna is herein named the Alamoan fauna. Magnetic-polarity chronology shows that these survivors lived for about one ...
Yes, it is true that at around that time a big asteroid hit Earth. But… was this actually what killed the dinosaurs? Or did it arrive just in time to get all the blame? Because according to some recent science, just before the asteroi...
But such thinking would be hypocritical of me, and it would have made me no better than the xenophobes that would actually try to boycott this short (which I’m sure do exist). For the most part, the audience did seem to enjoy it, although I still feel a bit of cringe when I ...
many palaeontologists believe that humans and primates could not have appeared on Earth if the dinosaur species had survived. Therefore, we can say that the climate deterioration and big changes in the vegetation led to the end of the Cretaceous period and that the asteroid caused the knockout ...
settings, sediment accumulates so slowly that a rapid event such as an asteroid impact is hard to resolve in the rock record. “Because so much sediment was laid down there at once, it meant we could extract enough fossils to analyze, and we were able to capture the transition,” says ...
The End of the DinosaursWhat caused the dinosaurs to disappear from the face of the Earth? Did they die because of a lack of food?1Did changes in the weather cause their disappearance?2Itis likely that an asteroid(小行星) hit the Earth in what is now part of Mexico with the force of...