hadrosaur

简明释义

英[ˈhædrəsɔː(r)]美[ˈhædrəsɔːr]

n. [古生] 鸭嘴龙（一种长有鸭嘴的恐龙）

英英释义

单词用法

同义词

反义词

例句

1.While the scratches told the scientists how the animal may have chewed, the lack of pit marks on the teeth suggested what the hadrosaur was eating.

这些纹路能告诉科学家们这些动物可能是怎样咀嚼食物的，而牙齿上并没有坑坑洼洼的小坑，这个迹象告诉我们鸭嘴龙吃什么。

2.The cause of hadrosaur cancer remains a mystery today, but dinosaur fossils are helping unlock secrets of diseases millions of years old. Who knows what else they'll reveal.

鸭嘴龙的癌症病因至今还是个谜，但恐龙化石帮助我们揭开了隐藏了百万年之久的秘密。谁知道它们还会揭示什么呢。

3.Nicknamed Dakota, the hadrosaur is one of only five naturally preserved dinosaur mummies ever discovered.

绰号达科他的恐龙是一个只有5个自然保护恐龙化石(的群落)发现。

4.The cause of hadrosaur cancer remains a mystery today, but dinosaur fossils are helping unlock secrets of diseases millions of years old. Who knows what else they'll reveal.

鸭嘴龙的癌症病因至今还是个谜，但恐龙化石帮助我们揭开了隐藏了百万年之久的秘密。谁知道它们还会揭示什么呢。

5.In documentaries, the behavior of the hadrosaur is often compared to modern herbivores.

在纪录片中，鸭嘴龙的行为常常与现代草食动物进行比较。

6.Children at the park were excited to learn about the hadrosaur during the dinosaur workshop.

公园里的孩子们在恐龙工作坊上了解到鸭嘴龙，感到非常兴奋。

7.Paleontologists discovered fossilized remains of a hadrosaur in the valley.

古生物学家在山谷中发现了一个鸭嘴龙的化石遗骸。

8.The hadrosaur was known for its unique duck-like bill.

鸭嘴龙因其独特的鸭嘴状喙而闻名。

9.The museum's new exhibit features a life-sized model of a hadrosaur.

博物馆的新展览展示了一个逼真的鸭嘴龙模型。

作文

The world of dinosaurs is filled with fascinating creatures, one of the most interesting being the hadrosaur. The term hadrosaur refers to a group of herbivorous dinosaurs that thrived during the Late Cretaceous period, approximately 75 to 90 million years ago. Known colloquially as 'duck-billed dinosaurs', hadrosaurs were characterized by their broad, flat snouts that resembled the bill of a duck. This unique feature not only gave them their nickname but also played a crucial role in their feeding habits. With their specialized teeth, hadrosaurs could effectively grind down tough vegetation, allowing them to thrive in various environments. One of the most remarkable aspects of hadrosaurs is their social behavior. Fossil evidence suggests that these dinosaurs lived in large herds, which provided protection against predators and increased their chances of survival. Being part of a herd allowed hadrosaurs to communicate and coordinate their movements, making it easier to find food and avoid danger. This social structure is similar to that of many modern herbivores, such as elephants and wildebeests, highlighting the evolutionary advantages of living in groups.In addition to their physical characteristics and social behavior, hadrosaurs are notable for their diverse range of species. Some of the most well-known hadrosaur species include the Edmontosaurus and Parasaurolophus. The Parasaurolophus, in particular, is famous for its long, backward-curving crest on its head, which may have been used for communication or display purposes. This crest likely produced unique sounds, allowing hadrosaurs to communicate over long distances, much like some modern birds do today.Paleontologists have discovered numerous fossils of hadrosaurs across North America, Europe, and Asia, indicating that they were widespread and adaptable creatures. These fossils provide valuable insights into their anatomy, behavior, and environment. For instance, the discovery of fossilized footprints has shown that hadrosaurs traveled in herds, while stomach contents from fossil specimens reveal their diet consisted mainly of leaves, shrubs, and other plant materials.The extinction of hadrosaurs, along with many other dinosaur species, occurred around 66 million years ago during the mass extinction event that wiped out the dinosaurs. While the exact cause of this extinction is still debated, it is widely believed that a combination of volcanic activity, climate change, and a catastrophic asteroid impact played significant roles. Despite their extinction, hadrosaurs remain a subject of great interest for paleontologists and dinosaur enthusiasts alike, as they represent a successful and diverse group of dinosaurs that adapted well to their environments.In conclusion, the hadrosaur is a remarkable example of the diversity and complexity of dinosaur life. Their unique adaptations, social behavior, and widespread presence during the Late Cretaceous period make them a fascinating subject of study. As we continue to uncover more fossils and learn about these incredible creatures, our understanding of the past will only deepen, allowing us to appreciate the rich tapestry of life that once roamed our planet.

恐龙的世界充满了迷人的生物，其中最有趣的之一就是鸭嘴龙。术语鸭嘴龙指的是一组在白垩纪晚期（大约7500万到9000万年前）繁盛的草食性恐龙。由于其宽阔平坦的嘴部形状类似于鸭子的嘴，因此被通俗地称为“鸭嘴龙”。这一独特特征不仅赋予了它们这个昵称，还在它们的觅食习惯中发挥了重要作用。凭借其特殊的牙齿，鸭嘴龙能够有效地磨碎坚韧的植物，从而使它们能够在各种环境中生存。鸭嘴龙最引人注目的方面之一是它们的社会行为。化石证据表明，这些恐龙生活在大型群体中，这为它们提供了对捕食者的保护，并增加了生存的机会。作为群体的一部分，鸭嘴龙能够进行交流并协调行动，使寻找食物和避免危险变得更加容易。这种社会结构与许多现代草食动物（如大象和角马）相似，突显了群居生活的进化优势。除了身体特征和社会行为外，鸭嘴龙因其物种的多样性而受到关注。一些最著名的鸭嘴龙物种包括埃德蒙托龙和帕拉索罗龙。尤其是帕拉索罗龙，以其头部向后弯曲的长冠而闻名，这可能用于交流或展示目的。这个冠可能发出独特的声音，使得鸭嘴龙能够在较远的距离上进行交流，就像一些现代鸟类今天所做的那样。古生物学家在北美、欧洲和亚洲发现了大量的鸭嘴龙化石，表明它们是一种广泛分布且适应性强的生物。这些化石为我们提供了有关它们解剖学、行为和环境的宝贵见解。例如，化石化的足迹的发现表明，鸭嘴龙是以群体形式行动的，而来自化石标本的胃内容物则揭示了它们的饮食主要由叶子、灌木和其他植物材料组成。鸭嘴龙的灭绝，以及许多其他恐龙物种的灭绝，发生在大约6600万年前的灭绝事件中，这场事件导致恐龙灭绝。尽管这一灭绝的确切原因仍在争论中，但普遍认为火山活动、气候变化和灾难性的陨石撞击的结合在其中起了重要作用。尽管它们已经灭绝，鸭嘴龙仍然是古生物学家和恐龙爱好者极感兴趣的对象，因为它们代表了一组成功且多样化的恐龙，能够很好地适应其环境。总之，鸭嘴龙是恐龙生活多样性和复杂性的一个非凡例证。它们独特的适应性、社会行为和在白垩纪晚期的广泛存在使它们成为一个迷人的研究对象。随着我们继续发现更多化石并了解这些令人难以置信的生物，我们对过去的理解将不断加深，使我们能够欣赏曾经在我们星球上漫游的丰富生命图景。