I wrote a spread for Mental Floss on parts of pigs that you can now, or will soon be able to, install in your body for medical purposes. Examples: fetal pig stem-cells, potentially injectable into one’s brain to fight the effects of Parkinson’s; transgenic pig skin, to treat burn victims; human sperm, produced in bulk by modified pig testes.
I don’t have an electronic copy of this graphic, but when I have one, I’ll post it here.
Graeme Wood 