Yes.
Keratin
Alpha-Keratin
i don't know the name but its stuff that the rattles snakes' tails are made out from.
The rattle is made of keratin, the same group of substances that make up the human's outer layer of skin, fingernails, claws, horns, etc.
Rhinoceros horns are made out of solid keratin. Keratin is the same material that fingernails and hair are made of. Also like fingernails, the horn can grow back if it is cut.
Fingernails are made of a protein called keratin and are considered non-living material, as they do not contain cells or have the ability to grow or repair themselves.
Walruses dont have trunks. There tusk is made from dendrite, the same material as your fingernails
Rhinos do not have tusks, but their horns are made from compacted hair and keratin (the same material as fingernails).
acrylic Acrylic nails are generally safe, but can increase the risk of infection under the nail.
Fingernails are biotic, meaning they are derived from living organisms (the cells in the nail matrix), but once they are fully formed, they are considered to be made of abiotic material (keratin).
2000
I believe that exoskeletons are made of the same material as our own fingernails and hair, just compacted together.