That's a factory option Critter Portal. Rare.. very rare.
I only get 100 characters including BBcode for my Sig line now so I thought I'd be witty and write until I run out of characters but for some reason I'm not running out of space as if some magic or witchcraft is afoot. I wonder what it could be. Perhaps the planets aligned and I'm the exception to the rule or some benevolent soul in a position of authority has looked down upon me and my predicament and has opted to rectify it in his intoxicated state and make people read this whole thing for no reason at all. Other than his amusement of course.