In the rocks there were brown layers which came from old riverbeds. 岩石中有古老河床形成的褐色地层 Above this were grey layers made up of lake muds. 上面是湖泊泥渣形成的灰色地层 These two layers seemed to be evidence for...
Judy Parish has devoted her career to studying the climates of the past. Judy Parish一辈子都在研究古气候 It's sort of like mystery novels, so this is a little bit like a detective story, 这就像是悬疑小说,有点类似于侦探小说的...
When they looked further, there were clear signs that the fish had been killed by a volcanic eruption, 他们继续搜寻后发现,一些显著迹象表明这些鱼的确死于火山爆发 but then the evidence became more confusing. 可是后来的证...
It seemed a perfectly good theory, but the big test was: 这似乎是完美的理论,但关键问题是 was there any evidence that it actually had affected the dinosaurs? 是否有证据能证明这场事件真的影响了恐龙 Argentina was the...
It's very hard to imagine just the scale of the volcanism which starts off at this time. 当时的火山爆发规模大到无法想象的地步 It's vastly greater, several orders of magnitude greater, than anything we see on earth today. 它太剧烈了...
The rocks here are littered with this abundance of Jurassic sealife, but it doesn't last. 这里的岩石布满了侏罗纪海洋生物资源,但它并不是连续的 Further up the cliff there's a black layer and here the fossils just disappear. 在...
Finding out how this event had transformed the dinosaurs had obsessed palaeontologists for years. 这场事件如何改变恐龙,数年来一直困扰着古生物学家 The site in Argentina gave them the chance to test out all their theories. 阿根...
Because until Argentina scientists had so few facts all they had to go on were their theories, 因为在此之前,科学家们只有很少一些资料能证明他们的假设 but all these theories did have one thing in common: 但是所有这些假设...
Within a few more weeks his team had discovered the remains of two big meat-eating dinosaurs 短短几周内,他的研究小组发现了两只大型食肉恐龙的遗体 and no fewer than six giant plant-eaters. 和不下于6只大型植食恐龙 T...
Finding one dinosaur wasn't enough to unlock the secrets of the mid-Jurassic 找到一只恐龙并不足以解开中侏罗世之谜 and there was no guarantee they would find more, and worse, the site was huge, 他们不能肯定是否还能找到更多...