Alright I have an odd theory about the animus this theory is centered around 3 facts
1.The animus allows you to relive the memories of your ancestors through you genetics(DNA)
2.Those who came before and Human bred and had offspring.
3. Those offspring have some DNA from those who came before to use eagle vision
So it could be possible for a possessor of Eagle Vision to relive the memories of on of those who came before. thoughts ...theories Parkour.Assassin