yes, but i was referring to one of the impossibilities of jurassic park. dinosaurs would have a very hard time surviving today, because the current oxygen level is much higher than it was then. it hoverd around 30% for a long time, then it dropped down to 10 percent at the end of the Permian era. no one is sure exactly why, but it caused a massive extinction event. it has slowly risen over the last 200 million years to about 21%, which is pretty much twice the level as during the jurassic...
https://en.wikipedia.org/wiki/Oxygen_toxicity.....so a cloned dinosaur would have a problem adapting to breathing twice as much oxygen as they were designed to....mammoths are more modern, and shouldn't have as much of a discrepancy to deal with......is what i meant....i'm aware of evolution.....