Evolution always happens for the better. Dinosaurs went extinct coz the world was too small for them. And I feel it’s a ridiculous idea to bring them back into existence since man knows very little about their behavior. I wouldnt be surprised if we see a Jurassic Park encore if these colossal creatures are given a second lease of life.

The Tasmanian tigers became extinct, rather they were hunted down to extinction by the early Aussie settlers. Though cloning might bring back the Tasmananian Tigers to the Aussie outback, it would certainly be a dangerous proposition as don’t exactly know how these animals will behave, with humans as well as the animals co-inhabiting the ecosystem around them.

I take exception to your point Jayaprashanth. The Tasmanian Tiger had co-existed with humans. And it certainly wasn’t a case of natural extinction. And in the TT’s case, we are talking about an animal that wasnt bigger than a dog, so the danger posed by the TT will be minimal. On the contrary, dinosaurs lived in a different era. We are not acquainted with their behavior (unlike the TT). I believe animals like the TT or the Dodo can be brought back to life, but not the large reptiles.