We keep hearing how scientists are so close to cloning a woolly mammoth...In this video we explore why they haven't actually managed to do it yet! Sources and further reading: http://www.cbc.ca/news/technology/woolly-mammoth-autopsy-provides-flesh-and-blood-samples-1.2849875 (Sinclair, K. D.; Corr, S. A.; Gutierrez, C. G.; Fisher, P. A.; Lee, J.-H.; Rathbone, A. J.; Choi, I.; Campbell, K. H. S.; Gardner, D. S. (26 July 2016). "Healthy ageing of cloned sheep". Nature Communications. p. 12359. doi:10.1038/ncomms12359.) Gray, Richard; Dobson, Roger (31 January 2009). "Extinct ibex is resurrected by cloning". The Telegraph. London. Retrieved 1 February 2009.) http://dx.doi.org/10.1016/S0960-9822(03)00148-9 https://web.archive.org/web/20130502125744/http://www.ornl.gov/sci/techresources/Human_Genome/elsi/cloning.shtml) http://agbiosafety.unl.edu/education/clone.html Lozano, Juan A. (27 June 2005). "A&M Cloning project raises questions still". Bryan-College Station Eagle. Retrieved 30 April 2007. Gray, Richard; Dobson, Roger (31 January 2009). "Extinct ibex is resurrected by cloning". The Telegraph. London. Retrieved 1 February 2009.) Follow Second Thought on Social Media! Twitter: https://twitter.com/_SecondThought Facebook: https://www.facebook.com/secondthoughtchannel/ Much of the research in this video was compiled by a very helpful volunteer named Alan Le! Big shout out to Alan for his excellent work! Music: Hackbeat by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100805 Artist: http://incompetech.com/