unlike the noses these head shapes are almost universal with all shark species

pinna is the word for the outer parts of ur ear btw i know it sounds weird

also i imagine sharks with hair are called stethacanthus sharks bc! the real stethacanthus is a prehistoric ratfish (not quite a shark but close relatives) that has cute little scales on its head that resemble hair :]

no i just really like sharks and i want to build up a little world and lore for my shark fursona