[Magvns]

thats interesting - i've never even heard of it

[ryu2832]

Originally Posted by Kicks

Think I understand it a bit now. Am I right - they are sort of doing the reverse by starting with the 'final' copy (the horses in the study) and trying to remove the 'layers' back to the 'original' (Nez Perce) horses?

That sounds like what they are doing. They will analyze each horses genotype and determine how related they are to each other. They can then place them on a family tree, and determine when each line branched off, until they get to the 'trunk' or Nez Perce.