User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-6005381-20130312164947

Ok heres a refined theory on the ancient rathian or 'Unknown'.

Theory starts with the origin of the beast:

As any player of MHFU will know to the east of mingrade, over the himeroon mountains lies the region of shrade. As stated in the description it is a land devestated by giant monsters and elder dragons. Originally however it would of probably been similar to minegrade with similar monsters. When all started to go to hell most would have fled or died, but there is a possibility that some survived. To survive and compete against such feirce competition it is possible that to ensure their survival the monster began to rapidly evolve. As well as this the amount of dragon presence could also start to mutate them as well (stygian zinogre is a prime example of this dragon mutation). The combination of the two factors acting on a rathian could have produced the 'Unknown' which does show adaptaions which fit the bill, mainly those of enhanced power.

Why is it in minegrade?

The arrival of the species in minegrade could be from a single monster wandering in and finding how easy it's prey was and how weak it's competition. It is then possible that others then followed, creating a colony of highly evolved 'super rathians' capable of out compeating other predators.

How dose it survive?

From the harsh enviroment of shrade, almost all minegrade regions would be a comparitave haven. Full of food and with plentiful nesting areas much unlike the barren schrade region it would be use to as for temperature, a rath can be fought in every zone unknown visits (exept the desert).

Remember, still just a theory. Anything too add?