the skin on those legs will dry up, lose their color, flack off and/or start growing nasty stuff.
i recommend you strip off all the scales and stuff under them off and get it down to bone, then dap with a little peroxide to whiten them after washing good with dawn.
I don't think so...
They were soaked in preservative and I added a sealer. I have one that's considerably older, and it still looks the same.