Another commissioned piece by  SephrenDemon is a creature I call a Graith.

These mighty apex predators of the skies, these powerful carnivores have few rivals. With five retractable claws per foot and a sixth claw that can rip into anything that happens to be in their way, plus a maw full of sharp teeth, the Graith can certainly ruin the day of anything that it happens to target. Be it a land predator, a speedy prey or even the occasional Foxen farmer. Size based, they can give certain dragons a challenge for length. Another interesting feature is a kind of crotch pouch that can accommodate their young...or even a full grown Foxen whom is all scrunched up. It consists of three fur coated flaps that can close in on themselves and has a feathery external covering over the tummy region for extra insulation.

Original piece can be found here: http://www.furaffinity.net/view/22122876/