Are dinosaur still alive

Answer 1

Yes in a way but no, not exactly.

Studies on bird bones and Dinosaur bones have shown that they are very similar to the branch Dinosauria.

Sharks and crocodiles have evolved from marine dinosaurs which survived the mass extinction.

Some believe that dinosaurs evolved into birds. But this is not correct. Flying creatures were not dinosaurs, they were actually a completely different class called pterosaurs.

So, while dinosaurs themselves are not alive these days, their evolved modern equivalents still walk among us.
Only the evolutionary descendants of the dinosaurs are all still roaming the earth. Two examples are Crocodiles and Tuatara.


See an entire list of creatures that are millions of years old, plants, animals, fungi, bacterias, fish, reptiles, birds etc etc. Note that millions of years cause fundamental changes in a a species such that the descendants will be unrecognizable to the parents.

http://en.wikipedia.org/wiki/Living_fossil

Answer 2

I believe so. Look at the Gila monster for example. In a perfect world reptiles never stop growing.