How do we "know" that dinosaurs are really all gone?

Question

If you saw one, would you tell anyone? No, because it would eat you first. Maybe they are on some island in the ocean. How do you know they don't, if you have not been to that island, and how do you know what island they may or may not be on. Maybe they live in caves underground. I do not think they are all gone. One dinosaur I am positive is alive is called nessie, or the lock ness monster.

Answer 1

No one has come up with positive evidence, Nessie included.

However, there are still some unexplored areas, so it might still be possible. After all, the coelacanth was supposedly extinct for about 150 million years, but was found to be living as recently as 2002:
http://en.wikipedia.org/wiki/Coelecanth

Answer 2

is their any difinitive proof that they are alive? No dinosaur has been found alive in recorded history. If their is a live dinosaur, I believe that someone in the last 1,000 years would have found it and let it be known. Nessy has been proven time and again to be a fabricated hoax. How many Nessy pictures have been disproven? If Nessy is not a hoax, then I challenge anyone to prove that she exists. By proof, I mean a carcass or a live animal. Some of the best scientists of modern times have tried and failed. Good luck in your hunt.

Answer 3

We do not know, because maybe they evolved. There is a theory that "big" dinosaurs are indeed gone. This idea says that reptiles of the dinosaur age evolved into birds. In recent films about Triassic Whatsit, dinosaurs move with such agility because they are bird-like. When I was a child, films with dinosaurs had lumbering tyrranosaurs so slow that one could make a reservation, wait at the airport, and catch a plane out before it got to you.

But if it interests you, read the books of Edgar Rice Burroughs: "The Land that Time Forgot," and all of his.

Answer 4

There is virtually no area of the world that has not been visited by man at least once, either in person or via satellite photography, so the chances of such large animals still roaming around somewhere unseen are quite low. However, since it is impossible to prove a negative (no dinosaurs exist) we cannot ever truly know whether the statement is true or not.

Answer 5

They aren't gone....
Modern forms of dinosaurs are birds and reptiles.
Most of the larger species of dinosaurs were killed off at the end of their era, but a few of the smaller ones were already growing feathers. Some of the later dinosaur fossils show traces of feathers.
Dinosaurs are usually thought to be large coldblooded reptiles, but there are some problems with this idea. Some fossil evidence suggests that some dinosaurs may have been warm blooded, as are birds.

Answer 6

Alligators and crocodiles are descendants of the dinosaurs... technically they are the direct link to the ancient creatures. So, no, the dinosaurs aren't really all gone.

Answer 7

Humans have been everywhere. Any dinosaur living in a cave would be so inbred it could not survive.

Answer 8

i think its bold to say that we have visited everywhere in the world,there are unexplored regions of land man has never been,even forests of the northwest US.if weve been everywhere the why are new species still being discovered today,beside we(speaking of man in general) usually destroys most of what he comes in contact with!!

Answer 9

They still exist. Haven't you seen King Kong?

Answer 10

If I ran acroos a dinasoar that was a vegetarian, I am sure I would live to tell about it.