Playing God?

Just because you can do something, doesn't mean you should.

http://fbmg.yuku.com/topic/743?page=-1

http://www.mailonsunday.co.uk/sciencetech/article-1026340/Jurassic-Park-comes-true-scientists-brink-bringing-dinosaurs-life-thanks-discovery-DNA-relics-humble-chicken.html

On a side note: Hens teeth may not be quite so rare anymore...