Proteinaceous

By enabling delivery fo active components beneath the skin, the sting and venom opened a bonanza of opportunities for the evolution of highly specific and active components, particularly proteinaceous materials.

A few types of molecules get sensed by receptors on the tongue. Protons coming off of acids ping receptors for "sour." Sugars get received as "sweet." Bitter, salty, and the proteinaceous flavor umami all set off their own neural cascades.