User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-4820236-20120525021631/@comment-124.148.245.191-20120527111140

Alatreon and Fatalis exist at the same time so that theory is implausable. Species evolve as a whole, leaving the weak behind. If you look closely however, you'll see that Alatreon's shape and behaviour is very similar to that of Kushala Daora and Rukodiora. As they live in different area's however, it is plausable that they share the same common widespread ancestor, just with different evolutionary paths. The different branches would occur due to a number of factors such as hunting, environment and prey and predators.