| 单词 | American mastodon |
| 例句 | Expect to find over 700 fossil specimens, including a T. rex, woolly mammoth and American mastodon. 4 spots where your kids can pretend they’re in Jurassic Park 2022-08-05T04:00:00Z Over 13,000 years ago, an American mastodon roamed what is today the American Midwest. Fred the Mastodon’s Tusks Reveal a Life of Fighting and Roaming 2022-06-13T04:00:00Z For decades, paleontologists, archaeologists and ecologists have been debating about the fate of animals such as the American mastodon and saber-toothed cats. Footprint Discovery Hints at Humans in the Americas More Than 20,000 Years Ago 2021-09-23T04:00:00Z The American mastodon – Mammut americanum – is a real rock star among prehistoric mammals. Mastodons to the Max 2019-04-13T04:00:00Z Researchers believe the pieces belonged to a male American mastodon that lived for two or three decades. Mastodon bones discovered at Michigan construction site 2017-09-07T04:00:00Z That’s what the new paper by Widga and colleagues focuses on, tracking the fate of the American mastodon in the center of North America. Trundling toward Extinction 2017-08-20T04:00:00Z The biggest find was a partial skeleton from a single American mastodon. Archaeology shocker: Study claims humans reached the Americas 130,000 years ago 2017-04-26T04:00:00Z The partial remains of the American mastodon, a long gone relative of the modern elephant, were discovered in San Diego in the winter of 1992 during a freeway expansion project. Could history of humans in North America be rewritten by broken bones? 2017-04-26T04:00:00Z The bones and teeth of the American mastodon also figured prominently in Georges Cuvier’s famous proof that extinction is a reality at the end of the 18th century. Mastodons to the Max 2019-04-13T04:00:00Z In the new study, researchers compared nuclear DNA from living elephants as well as from a 43,000-year-old woolly mammoth bone from Siberia and from a 50,000- to 130,000-year-old North American mastodon tooth. Genes Separate Africa?s Elephant Herds 2010-12-22T16:20:00Z For now, there’s just no evidence that people drove the American mastodon to extinction. Trundling toward Extinction 2017-08-20T04:00:00Z The teams compared the genetic code of modern elephants from Africa and Asia to DNA taken from two extinct species -- the woolly mammoth and the American mastodon. Africa has two species of elephants, not one 2010-12-21T22:02:03Z The researchers compared sequences of DNA from the nuclei of African and Asian elephants, and from woolly mammoths and the American mastodon. African elephant 'is two species' 2010-12-21T21:53:26Z In time, though, it seemed that there was only one American mastodon that lived from coast to coast. Mastodons to the Max 2019-04-13T04:00:00Z The researchers also made what they say are the first sequences of nuclear DNA from the extinct American mastodon. in the journal Public Library of Science Biology. African elephant 'is two species' 2010-12-21T21:53:26Z |
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