第2690期:'African' Dinosaur Discovered in Morocco

Evidence of one of the last dinosaurs to live in Africa has been discovered in Morocco.在摩洛哥发现了最后一个居住在非洲的恐龙之一的证据。A fossilized dinosaur jawbone was recovered at a mine, which is about 100 kilometers west of the city of Marrakesh.在马拉喀什市以西约100公里处回收了一个化石的恐龙颚骨。Researchers say the bone belonged to a creature they are calling Chenanisaurus Barbaricus.研究人员说，骨头属于他们称为Chenanisaurus barbaricus的生物。Dinosaurs lived between about 230 and 65 million years ago. Then they died out. Scientists think an asteroid -- a huge rock from space – struck the Earth’s surface 66 million years ago.恐龙的生活在大约230至6500万年前。 然后他们消失了。 科学家认为，一只小行星 - 一块来自太空的巨大岩石 - 在6600万年前袭击了地球的表面。They believe this event led to the disappearance of dinosaurs on our planet. This marked the end of the time period known as the Cretaceous Period.他们认为，这一事件导致恐龙在我们地球上消失。 这标志着被称为白垩纪时期的时间段的终结。Nick Longrich identified the new dinosaur species. Longrich is a paleontologist at the University of Bath. He says what is important about the discovery is that it shows how Africa had its own dinosaurs.尼克·朗里希（Nick Longrich）确定了新的恐龙物种。 朗里希（Longrich）是巴斯大学（University of Bath）的古生物学家。 他说，这一发现重要的是它表明了非洲如何拥有自己的恐龙。"We have a pretty good picture of the dinosaurs from North America for this time period. For example, Triceratops and T. Rex are part of this fauna, this sort of twilight fauna of the last dinosaurs on Earth. But we don't have a good picture of what's going on in the rest of the world and we know almost nothing about the African dinosaurs from this time period."“我们对这一时期的北美恐龙有很好的了解。例如，三角龙和霸王龙是这个动物群的一部分，属于地球上最后的恐龙的暮色动物群。但我们对世界其他地方正在发生的事情没有很好的了解，而且我们对这一时期的非洲恐龙几乎一无所知。”“在这个时期，我们对来自北美的恐龙有很好的了解。Nick Longrich thinks the Chenanisaurus was similar in appearance to the larger Tyrannosaurus Rex, also called T. Rex. But there were differences.尼克·朗里希（Nick Longrich）认为，chenanisaurus的外观与较大的霸王龙相似，也称为T. Rex。 但是有差异。The Chenanisaurus had a shorter snout than the T. Rex. The area around its nose and mouth were not as big.Chenanisaurus的鼻子比T. Rex短。 鼻子和嘴巴周围的区域不那么大。Longrich suspects that the T. Rex probably had feathers like a bird, but the Chenanisaurus did not. He also thinks the Chenanisaurus was less intelligent than the T. Rex because it had a smaller brain.朗里希（Longrich）怀疑雷克斯（T. 他还认为Chenanisaurus比T. Rex聪明，因为它的大脑较小。Longrich said researchers know the fossil comes from a dinosaur bone because of the teeth. Dinosaur teeth are usually serrated, pressured from side to side.朗里希（Longrich）说，研究人员知道，由于牙齿，化石来自恐龙骨。 恐龙的牙齿通常是锯齿状的，一侧到另一侧是压力。In addition, the edges of the teeth were rounded, as if they bit into bone. This suggests that the Chenanisaurus, like the T. Rex, hunted for its food.另外，牙齿的边缘被圆形，好像它们咬在骨头上一样。 这表明，像T. Rex一样，Chenanisaurus狩猎了食物。For Longrich, the fossil discovery in Morocco is evidence for the theory of mass extinction of the dinosaurs.对于朗里希来说，摩洛哥的化石发现是恐龙大规模灭绝理论的证据。"It's interesting to see evidence confirming that dinosaurs remained successful and the fauna stayed pretty stable up until the end of the Cretaceous period in Africa. So I think there is no evidence as far as I'm concerned of a decline in dinosaur diversity approaching the extinction, and if it hadn't been for this asteroid, we'd probably still have dinosaurs here today."“很有趣的是，证据证明恐龙仍然取得成功，而动物群一直保持稳定，直到非洲的白垩纪结束时。因此，我认为没有证据表明，就我关注恐龙多样性的下降而接近灭绝的证据，如果没有这种小争吵，我们可能仍然在这里。”