User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-74.193.210.169-20120706231922/@comment-1653324-20120709125345

This thread will eventually end with a 1st/2nd gen vs. 3rd/4th gen monsters... But anyway...

The 2 sets of bird wyverns are unique. Besides, what made the 3rd gen not a complete pushover was that the developers learned the flaws of the preys/dromes for a few years, and had made new ones from scratch, taking into account this information.

Besides, the dromes have their slim builds that are excellent for sustaining jump attacks. While the new ones are thicker set and are more adept to groud combat. I think it's ok for them to be in the same game, and even support this idea, as the game would feature monsters with similar builds but different movesets, like in Frontier.