The Earth is over 4 billion years old and the dinosaurs were dominant some 200-250 million years ago. It is safe to say that there was extensive life present on Earth before the dinosaurs as some of that life had to evolve into the dinosaurs....
In the days of dinosaurs,the whole earth was warm and wet.There were many green forests.But the earth changed slowly all the time.When parts of the earth became cold and dry,the forests there died.Then dinosaurs could not find enough food to eat.This must be one reason...
What Earth Was Like Just Before the Dinosaurs?: The Permian-Triassic extinction a quarter billion years ago marks the beginning of the age of dinosaurs. But it was tens of millions of year later that life could get back to normal because the super contin
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Learn about life on Earth before humans made an appearance inWhat the Dinosaurs Saw, by author/illustrator Fatti Burke. Our whole universe began as a tiny dot, filled with so much hot, dense energy that it burst. This event was the Big Bang, and from the remnants of that explosion, our...
The Earth was once "ruled" by a kind of animal called dinosaur from 65 to 230 million years ago. Then the dinosaurs disappeared with only huge bones, eggs or footprint being 1.What did the dinosaurs look like? Why did they die out? Scientists spent 10 years collecting a lot of ...
英语翻译The dinosaurs(恐龙)once lived happily on the earth.But 65 million years ago,they suddenly died out.What happened to them?Scientists think that a change in temperature may be to blame.They have come up with lots of ideas to explain t
blue whale can put on as much as 90 kg every 24 hours.在其生命的头七个月,蓝鲸每24小时可以增加90公斤。可知是长得快,自然是B。7.【答案】A【解析】题意是:A. 出现 B. 成功 C. 领导D. 欺骗,大多数人认为,地球上出现过的最大的动物是恐龙,根据ever___ on the earth was the dinosaur曾经___...
How tall was the tallest dinosaur? What is the smallest dinosaur fossil ever found? What was the dominant species on Earth before dinosaurs? What is a bipedal dinosaur? Was T-Rex the biggest dinosaur? What was the last living dinosaur?