Alt-week 6.1.13: cloning a mammoth, psychic robots and making music with your mind

Alt-week takes a look at the best science and alternative tech stories from the last seven days. We've not had a week quite as exciting as this in... well, weeks! Not only has a team of paleontologists discovered mammoth remains with liquid blood, there's good news for future generations who'd rather put their feet up (while hiding from mammoths, we assume). This is alt-week.