User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-5460283-20130921175439/@comment-4009941-20130922005800

Dunno what to say on this but according to Official info Flying Wyverns and Bird Wyverns on MH started from "Fear Wyverns/恐竜" or as we call it in english "Dinosaurs" from the branch "Saurischia/竜盤類" keep note in japan " 竜" = "Wyvern" or Dragon but mainly Wyvern in MH.

So Flying Wyverns and Bird Wyverns are evolving wings instead of only devolving them and I have no idea what to say on Pelagus jumps and hunters falling though light gravity like others say may be for those two.