the same amount of water we have today... (70%)
well there werent that much but the crocodile and shark have been here since the dinosaurs
Turtles were cold blooded and smaller than dinosaurs. Dinosaurs were much larger than turtles and had a higher metabolism, which caused the to starve much faster than turtles. Turtles could survive on the tiny scraps of food they could find until plants began growing again.
Tarantulas have been on Earth for at least tens of thousands of years, probably much longer. Their ancestor species have been on Earth since before the dinosaurs, hundreds of millions of years ago.
Elephants are still living and can be found in Africa and Asia.
Not so much. All of the water that has ever been on earth has been recycled through evaporation then rain or snow and so on since the earth began. So dinosaurs drank water and peed and the water was absorbed into the ground which filtered it and then it rose to the surface, evaporated, rained and so on. So yes it is the same water the dinosaurs used but any trace of dinosaur pee has long ago been filtered out.
Well,the dinosaurs your probably thinking of is like T-Rex's and others but there actually is a dinosaur that is still alive...Crocodiles,turtles,some fish and more!
None!
No. They are a kind of fish. But they haven't changed much since the time of the dinosaurs which is what I think you are referencing. Another one is the bat relating to pterodactyl.
Dinosaurs appeared on Earth long before the first humans or cavemen. Dinosaurs lived during the Mesozoic Era, which ended about 65 million years ago, while early humans appeared much later during the Pleistocene Epoch about 2.5 million years ago.
There are no non avian dinosaurs anymore because of the K-T extinction event 65.5 million years ago. An asteroid with a diameter of 6 miles crashed into what is now the Yucatan Peninsula, creating the Chixculub crater. It threw so much dust into the atmosphere, that sunlight was blocked for months. Plants died without sunlight, and the herbivorous dinosaurs died without plants to eat. The carnivores soon died out, too, because their prey was gone. However, birds, a group of dinosaurs, do still exist today.
Mammals survived where most dinosaurs (not all) died out for several reasons: - Mammals were eaten by various sizes of dinosaurs. Over time, mammals developed the ability to reproduce and have babies very fast, and give birth to large litters, too. The dinosaurs were very slow to reproduce, so as they died out, they couldn't make enough babies to replace them, where the mammals could. - Mammals, for the most part, were small, allowing them to live deep under rocks or in burrows where they were protected from whatever killed off the dinosaurs. - Dinosaurs could not find enough food to eat because their normal food animals were killed, too. But the mammals, being much smaller, could eat many little things - grass, insects, each other, that kept them healthy. Dinosaurs mostly required large food sources, which were disappearing. There is much more to this story than can be told, here.