搜索结果: 1-15 共查到“理学 Dinosaurs”相关记录19条 . 查询时间(0.078 秒)
What fossils tell us about the dining habits of dinosaurs（图）
Earth and Environmental Science Veterinary Medicine Research
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2023/6/29
Dinosaur paleontologists are detectives, piecing together clues from fragments of fossils to decipher what a whole organism looked like, how it moved, and how it behaved. While even a preschooler coul...
Dinosaurs lived in greenhouse climate with hot summers, study shows
VUB-UU greenhouse climate seasonal temperatures
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2021/8/4
Researchers have developed an innovative way to use the clumped isotope method to reconstruct climate in the geological past on the seasonal scale. They show that dinosaurs had to deal with hotter sum...
A steaming cauldron followed the dinosaurs' demise（图）
steaming cauldron followed dinosaurs' demise
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2020/6/5
A new study reveals that the Chicxulub impact crater may have harbored a vast and long-lived hydrothermal system following the catastrophic impact event linked to the extinction of the dinosaurs 66 mi...
In death of the dinosaurs, it was all about the asteroid（图）
death dinosaurs asteroid
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2020/2/20
Volcanic activity did not play a direct role in the mass extinction event that killed the dinosaurs, according to an international team of researchers. It was all about the impact of an asteroid, the ...
Separated Since the Dinosaurs,Bamboo-Eating Lemurs,Pandas Share Common Gut Microbes（图）
Bamboo-Eating Lemurs Pandas Share Common Gut Microbes
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2017/12/19
Bamboo specialization is one of the most extreme examples of convergent herbivory, yet it is unclear how this specific high-fiber diet might selectively shape the composition of the gut microbiome com...
Scientists track the brain-skull transition from dinosaurs to birds（图）
Scientists brain-skull transition dinosaurs birds
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2017/9/20
The dramatic, dinosaur-to-bird transition that occurred in reptiles millions of years ago was accompanied by profound changes in the skull roof of those animals — and holds important clues about the w...
Extinction event that wiped out dinosaurs cleared way for frogs
Extinction event wiped out dinosaurs cleared way for frogs
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2017/7/24
The mass extinction that obliterated three-fourths of life on Earth, including non-avian dinosaurs, set the stage for the swift rise of frogs, a new study shows.In a paper published this week...
Dinosaurs’ loss was frogs’ gain
Dinosaurs loss was frogs gain
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2017/7/24
Most of the frogs alive today owe a big thank you to the asteroid or comet that delivered the coup de grace to the dinosaurs.A new study by Chinese and American biologists shows that if the ...
Building a Better Alligator:Researchers Develop Advanced Three-Dimensional Models of Bite Data to Study Dinosaurs,Birds,Crocodiles
Better Alligator Advanced Three-Dimensional Models Bite Data Dinosaurs Birds Crocodiles
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2017/7/21
The skulls of alligators protect their brains, eyes and sense organs while producing some of the most powerful bite forces in the animal kingdom. The ability to bite hard is critical for crocodilians ...
How did dinosaurs 'proto fly'?Possibly like this
dinosaurs proto fly Possibly like this
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2017/7/21
How often does research reveal not only how dinosaurs could have moved in the past, but how robots might move in the future?If a Pacific parrotlet (Forpus coelestis) needs to get to a nearby...
Prized fossil find illuminates the lives of lizards in the Age of Dinosaurs
illuminates the lives lizards Age of Dinosaurs
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2017/2/16
Paleontologists picking through a bounty of fossils from Montana have discovered something unexpected — a new species of lizard from the late dinosaur era, whose closest relatives roamed in faraw...
Analysis of fossilized Antarctic bird's 'voice box' suggests dinosaurs couldn't sing
fossilized Antarctic bird voice box dinosaurs couldn't sing
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2016/11/4
The oldest-known vocal organ of a bird has been found in an Antarctic fossil that is related to ducks and geese and lived during the age of the dinosaurs, more than 66 million years ago.The discovery ...
Newly discovered baby Titanosaur sheds light on dinosaurs' early lives
baby Titanosaur dinosaurs early lives
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2016/4/25
Long-necked sauropod dinosaurs include the largest animals ever to walk on land, but they hatched from eggs no bigger than a soccer ball.A lack of young sauropod fossils, however, has left the earlies...
Scientists reconstruct genome of common ancestor of crocodiles, birds, dinosaurs（图）
Scientists reconstruct genome common ancestor crocodiles birds dinosaurs
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2014/12/30
Crocodiles are the closest living relatives of the birds, sharing a common ancestor that lived around 240 million years ago and also gave rise to the dinosaurs. A new study of crocodilian ge...
Dinosaurs fell victim to perfect storm of events, study shows
Dinosaurs fell victim perfect storm of events study shows
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2014/8/14
They found that in the few million years before a 10km-wide asteroid struck what is now Mexico, Earth was experiencing environmental upheaval.
This included extensive volcanic activity, changing sea ...