User blog comment:BannedLagiacrus/Monster Appreciation Week: Ukanlos (4th Gen)/@comment-27274684-20160307192702/@comment-26532315-20160307192956

Don't you see the similarities to Tigrex, Nargacuga, Barioth, Mi Ru,...? That's why he is a Flying Wyvern. He just doesn't have any wings, but behaves just like a Flying Wyvern.