Back from Extinction

Interesting advances in cloning and back breeding may bring back extinct animals and reverse the process of extinction
http://blogs.ei.columbia.edu/2012/09/10/how-a-pigeon-saved-the-buffalo/

http://singularityhub.com/2012/03/20/raising-the-mammoth-%E2%80%93-russian-and-korean-scientists-set-out-to-bring-back-the-extinct-giant/

http://www.telegraph.co.uk/earth/wildlife/7011035/Giant-cattle-to-be-bred-back-from-extinction.html