CurdledBabyGravy

I suck at learning without actually building something. Even to build something with a new language that I've never used, I just find a project and pick my way through it until I get the hang of it. Google is my best friend when I am doing one of those projects.

Impurities in the real thing probably.

Maybe just a small piece of the flesh (or whatever it is) that surrounds the horn?

Except Westerners don't buy Rhino horns for keratin as far as I know. There are other ways of obtaining keratin, are there not?

Hopefully not all endangered animals. I still think it's a bit of a different situation. That said, I think what you guys are doing is amazing and I really hope it works out!