The order Heterodontiformes includes sharks known for their distinctive blunt heads and unique teeth, which allow them to crush hard-shelled prey such as sea urchins and mollusks.

The horn shark family includes a small number of species, generally around 9 recognized species. These sharks are small to medium-sized, live mainly on rocky and sandy coastal bottoms, and feed primarily on mollusks and crustaceans, which they crush with their specialized teeth.