Horn Shark (Heterodontus francisci)

Calm and deliberate, the horn shark spends its days among rocks and reefs, resting in the gentle rhythm of the Pacific shallows. With curious eyes and a spiny crown, it seems both ancient and unhurried — a quiet resident of California’s coastal world.

Scientific Snapshot

A horn shark resting near a rocky reef, its patterned body and calm movements blending with the muted colors of coastal California waters.

Scientific Name: Heterodontus francisci

Common Names: Horn shark

Average Size: Typically 1 meter (3.3 feet)

Habitat: Rocky reefs, kelp forests, and sandy flats; prefers shallow temperate waters

Diet: Sea urchins, crustaceans, mollusks, and small fish

Conservation Status: Least Concern (IUCN Red List)

Range: Eastern Pacific — primarily off California and Baja California

From the Field

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