Content-Type: text/shitpost

From its name, I expected that chitin was a protein, perhaps analogous to keratin. Nope! it is a polysaccharide, analogous to cellulose. Its name predates systematic nomenclature, and is ultimately from Greek χιτών (/khitōn/, “tunic”) via Latin and French.

Still, I think it should have been ‘chitinose’. Had I been present at the creation…