Keratin is an extremely strong protein which is a major component in skin, hair, nails, hooves, horns, and teeth. But it apparently does nothing for John’s shell.
Good Morning, Fellow Cave Dwellers!
Keratin is an extremely strong protein which is a major component in skin, hair, nails, hooves, horns, and teeth. But it apparently does nothing for John’s shell.
Good Morning, Fellow Cave Dwellers!