Let him live again!
Just like the Bison, mammoths are large, easy to count, slow to breed and relatively speaking, didn't die out all that long ago. Jurasic Park really doesn't apply here.
What's really scary is a species that is so sucessful that they cause mass extinctions of untold thousands of species small and large. More extinctions happen every day in persuit of resources. So sucessful they may even threaten the ability of the planet to support life some day.
We have a problem far, far worse than any Jurasic Park scenerio. Jacques Cousteau in the 1960's was asked by a reporter "What do you see as the world greatest problem". The reporter was expecting him to respond with an answer regarding mans impact on the oceans, but rather got the response "The greatest problem facing mankind is his own success. The earth cannot sustain the growing population of human kind".
Probably more important than the environment (in this case) would be that these are long-lived intelligent animals where you've got cultural transmission of behavior in the mix. I'm guessing some researchers would be pretty interested just to look for any unexpected differences from elephants and try to explain those, though.I think to some degree the ability to clone any animal overlooks a pretty basic fact which is you can bring back something that physically replicates the animal but because the environment they are being brought into is not similar I am not sure that you will have a true insight into their behavior.
Probably more important than the environment (in this case) would be that these are long-lived intelligent animals where you've got cultural transmission of behavior in the mix. I'm guessing some researchers would be pretty interested just to look for any unexpected differences from elephants and try to explain those, though.
I think you may need to create a 'herd' as they may well have been 'social creatures', like elephants.
Ready for a herd of Wooly Mammoths ?