I read an article on this yesterday. Apparently some primo frozen mammoth marrow was discovered by some Russian scientists. Article said the use of DNA recovery for cloning had also gotten much better in the last 15 years or so.

I dunno. Having some woolly mammoths roaming about might make life more interesting... Heck, maybe we could clone up a bunch of extinct species. E.g., dodo birds. Seems okay to me, especially for those we humans have killed off.

Just stay away from those velioraptors...