贱贱骚年
The word "dinosaur" comes from the ancient Greek words "deinos" ("terrible") and "sauros" ("lizard"). Strictly speaking, dinosaurs refer to land dwelling creatures that dominated life on earth during the Mesozoic Era (225 million to 65 million years ago). They lived alongside with marine reptiles (such as ichthyosaurs, mosasaurs, plesiosaurs) and flying reptiles. As a group, dinosaurs existed for over 150 million years, occupying every type of environment and climate on Earth. They ranged in size from those as small as a chicken to others over 100 feet long and weighing nearly 100 tons. Dinosaurs did not achieve their great size or domination overnight - they evolved alongside reptiles and mammals, but managed to outcompete them. Were it not for the great Cretaceous extinction 65 million years ago, the mammals would not have evolved as they did, nor would human beings as we know them exist.
春天里的流星
恐龙的英文介绍是：
1、英文介绍：
Dinosaur refers to the recent common ancestor and all descendants of Triceratops, modern birds and Lianglong. For the convenience of research, dinosaurs can be divided into birds and non birds dinosaurs.
Among them, non bird dinosaurs only lived in the Mesozoic and became extinct 65 million years ago. This entry mainly introduces non bird dinosaurs.
Vigorous limbs, long tail and huge body are the portrayal of some non bird dinosaurs. They mainly inhabit in the forest or open areas of the lake shore plain.
2、中文翻译：
恐龙，是指三角龙，现代鸟类和梁龙最近的共同祖先及其所有后代。为方便研究，恐龙可分为鸟类和非鸟恐龙。其中，非鸟恐龙只生活在中生代，已于6500万年前全部灭绝。
而本词条主要介绍非鸟恐龙。矫健的四肢、长长的尾巴和庞大的身躯是部分非鸟恐龙的写照。它们主要栖息于湖岸平原的森林地或开阔地带。
外形特征：
大部分的恐龙要比大型蜥脚类恐龙还小得多。现有的证据表明，恐龙的平均大小在三叠纪、早侏罗纪、晚侏罗纪和白垩纪都不断变化。
大部分兽脚类恐龙的体重在100到1000公斤之间，而全新世的掠食性肉食动物则多半在10到100公斤之间。恐龙的体重估计值，大多介于1到10吨之间。伦敦国立自然历史博物馆的一个研究指出恐龙的体重平均值约在100公斤左右，而新生代的哺乳类体重平均值多在2到5公斤之间。
以上内容参考 百度百科—恐龙
麻辣de火锅
Dinosaurs (Greek: δεινόσαυρος, deinosauros) were the dominant terrestrial vertebrate animals for over 160 million years, from the late Triassic period, about 230 million years ago (Ma), until the end of the Cretaceous period, about 65 Ma, when most of them became extinct in the Cretaceous–Tertiary extinction event. The fossil record indicates that birds evolved from theropod dinosaurs during the Jurassic period, and most paleontologists regard them as the only clade of dinosaurs to have survived until the present day.Dinosaurs were a varied group of animals. Paleontologists have identified over 500 distinct genera and more than 1,000 different species of dinosaur, and remains have been found on every continent on Earth. Some dinosaurs were herbivorous, others carnivorous. Some were bipedal, others quadrupedal, and others were able to shift between these body postures. Many species developed elaborate skeletal modifications such as bony armor, horns or crests. Although generally known for their large size, many dinosaurs were human-sized or even smaller. Most major groups of dinosaurs are known to have built nests and laid eggs, suggesting an oviparity similar to that of modern birds.The term "dinosaur" was coined in 1842 by Sir Richard Owen and derives from Greek δεινός (deinos) "terrible, powerful, wondrous" + σαῦρος (sauros) "lizard". Through the first half of the 20th century, most of the scientific community believed dinosaurs to have been sluggish, unintelligent cold-blooded animals. Most research conducted since the 1970s, however, has supported what has since become the scientific consensus view: that dinosaurs were active animals with elevated metabolisms and numerous adaptations for social interaction.Since the first dinosaur fossils were recognized in the early nineteenth century, mounted dinosaur skeletons have become major attractions at museums around the world. Dinosaurs have become a part of world culture and remain consistently popular. They have been featured in best-selling books and films such as Jurassic Park, and new discoveries are regularly covered by the media. As a result, the word "dinosaur" has entered the common vernacular, although its use and meaning in colloquial speech may be inconsistent with modern science. In English, for example, "dinosaur" is commonly used to describe anything that is impractically large, slow-moving, obsolete, or bound for extinction.
Jessie佳佳酱
There were a lot of kinds of dinosaurs. Like saurischia,Ornithischia and plesiosaur. Some dinosaurs are small, and some are big. Some eat meat and some eat leaves
刘小刘1234
Tyrannosaurus rex, also known as, type species and currently the only valid species is Tyrannosaurus rex (Tyrannosaurus rex), also known as Rex Long, is a large, carnivorous dinosaurs Tyrannosaurus rex, the body length of about 13 meters, weighs about seven tonnes, survival in the late Cretaceous of Maastricht order last 300 years, dating back about 6850 years to 6550 years, is the Cretaceous - Tertiary extinction event, one of its last dinosaur species. Fossils found in North America, the United States and Western Canada, the distribution of a wider range of subjects than the other Raptors
蹦蹦跳跳321
简要介绍 Brief introduction 所有恐龙已经灭绝，但是恐龙的后代——鸟类存活下来，并繁衍至今。 All dinosaurs extinct, but the dinosaur offspring - birds survival, and grew so far. 恐龙（英文：dinosaur英音['dainəsɔ:]美音['daɪnə,sɔr]）是生活在距今大约2亿3 恐龙 Dinosaurs (English: dinosaur British sound [' dain ə s ɔ:] the beautiful sound [' da ɪ n ə, s ɔ r]) live in is about 2 million dating three dinosaurs 500万年至6595万年前的、能以后肢支撑身体直立行走的一类陆生动物，是群中生代的多样化优势脊椎动物，大多数属于陆生（栖息在陆地上）的爬行动物，但能直立行走，支配全球陆地生态系统超过一亿六千万年之久。 500 million years to 6595 million years ago, to support the body's upright hind legs, is a kind of terrestrial species of Mesozoic diversification of the advantages of vertebrates, most belong to terrestrial (perched on land) reptile, but can walk upright, dominate global terrestrial ecosystems more than 160 millions of years. 说是脊椎动物而不说是爬行动物的原因是，恐龙曾经被归为爬行动物，但是其不符合爬行动物的基本特征之一：匍匐的行走方式，以及现在一直被质疑的冷血动物一说。 Say vertebrates and not saying of reptiles reason is that dinosaurs to be categorized as reptiles, but it does not conform to the reptile one of the basic characteristics: prostrate walking style, and now has been questioned the cold-blooded animal said.
