User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-4993026-20130118033601/@comment-28303251-20130118180435

...It's not like they're the only rare species in the game...calm down. >.>

And I've seen them, Silver seems to be a lot more tricker than Azure. Not sure about Gold, but I do know their defenses are very high. (White sharpness and below will bounce)