User blog comment:Kogath/Monster Hunter: World Discussion/@comment-6050823-20170922122302/@comment-31796868-20170930232624

For all of you who thinks that Great Jagras looks like an Amphibian, or ehatever, you know that Amphibinas has strong back limos for jumping, and Fanged Wyverns, (well all are Zinogre variants) has strong forward limbs, and are based of synapsids, reptiles with mammals features, also Zinogre (like Akantor and Ukanlos) had wings, long time ago, the evidence is his weird claw located on his front arm, yes indeed, that was a wing.

As you can see Great Jagras and jagras are not so differnet as Zinogre, even he has hair (I think), also the spikes in his front limbs could also be part of his wing