This is seriously cool and great to see coming out of Australia. I know there have been attempts to clone several other species in recent years, what are the m

This is seriously cool and great to see coming out of Australia. I know there have been attempts to clone several other species in recent years, what are the most common issues with attempting to do this? I suspect not having a sufficient DNA sample, so how was one obtained for this case? Are the DNS repositories out there for extinct animals or those nearing extinction just so that one day we can bring them back? If not, i think this wouldn't be a terrible idea...