What? Why? How? Who?
This actually is taxidermy, because (again, brace yourselves), that's REAL SKIN up there.
From Dull Tool Dim Bulb:
"As much taxidermy as folk art, this terrifying lion must have certainly been part of a menagerie, as whoever made him was magnificently talented. Wooden teeth, fake eyes, an actual animal skin around a internal frame of unknown material. The mane is gone, long gone, and replaced with another piece of animal skin tacked on with brads. Extraordinary! The entire body is hand-stitched, possibly with sinew...and the lion is ten inches long."
This thing is from the nineteenth century, a time when people were genuinely weirder than they are now. Just, completely screwed up.
Here, have another angle:
The most important thing is that you don't think about this lion as you're falling asleep tonight...