There have been papers on recognizing humans by the ratios of their limbs (ie. what the exact ratios are between your various limb lengths). These can be recogn

There have been papers on recognizing humans by the ratios of their limbs (ie. what the exact ratios are between your various limb lengths). These can be recognized because it's easy to identify the points where the limbs rotate in video. It also has the advantage of still mostly working after death, if for instance you find a skeleton. So don't move ... at all. Ever.