User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-98.227.218.59-20121003041943/@comment-74.193.207.108-20121003052412

^ There is no such thing as a psuedo wyvern that is just a fan-made term. Plesioth use their wings to swim, akantor and ukanlos devolved flight because they no longer needed it, tigrex and nargacuga can fly, diablos along with monoblos are still capable of flight, gravios will travel to the swamp and I'm sure they don't wanna make that trip by walking, and plesioth along with lavasioth are piscine not flying wyverns and with their environments they don't need to fly. Half of the creatures you mentioned still fly.