eagles

The Horn Sharks, Heterodontus: A “Different” Kind

Back in my early days of diving, a couple of men I knew sported necklaces featuring a single horn shark spine. Luckily, the days of West Coast divers killing harmless sharks for jewelry didn’t last long.  Horn sharks (Heterodontus francisci) are members of the order Heterodontiformes (bullhead sharks) and the family Heterodontidae. The genus name, Heterodontus, comes from two Greek words meaning “different teeth” and the species name, francisci, is derived from San Francisco, though these sharks rarely venture that far north.  Heterodontidae is a […]

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