ADAPTED FOR SITUATION. “Hyena anal gland secretions contain relatively involatile high molecular weight molecules for long lasting marks for territory marking. Underwater, pheromones can be small as the unusual amino acid L-kynurenine used by masu salmon as a female sex pheromone or as large as proteins, if charged and soluble. For example, the sex pheromones of the sea slug Aplysia are the proteins attractin, enticin, seductin, and temptin.”
https://lnkd.in/drx5_4e