What material makes up the continuously growing horns of the takin?
Answer
Keratin
The horns are composed of keratin, which is the same material that constitutes human hair and fingernails, and they grow continuously from the skull.

Related Questions
Do female takin possess horns?What material makes up the continuously growing horns of the takin?How does the horn curvature typically begin on the takin's head?What is the primary difference in horns between a male (bull) and a female (cow) takin?What is the approximate maximum length mentioned for the horns of a large bull takin?What is the typical defensive behavior utilized when a group of takin feels threatened?What are the four recognized subspecies of the takin?Which physical characteristic is often used to compare the takin's build?In which aspect do the different takin subspecies show the most noticeable divergence?What is a likely evolutionary reason why female takin retain heavy horns despite lower reproductive competition than males?