Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Chondrichthyes
- Order
- Myliobatiformes
- Family
- Heterodontidae
- Genus
- Heterodontus
- Species
- japonicus
Habitat
This species inhabits continental shelves in the Northwest Pacific Ocean, from shallow coastal waters down to depths of about 370 meters, often around rocky reefs, kelp forests, and sandy bottoms. It prefers temperate regions near Japan, Korea, China, and Taiwan, where it seeks shelter in crevices and caves.
Diet
The Japanese bullhead shark primarily feeds on hard-shelled invertebrates such as crabs, sea urchins, and mollusks, using its powerful jaws and molar-like teeth to crush prey. It is nocturnal, actively hunting on the seafloor at night and resting during the day in hidden spots.
Behavior
This shark is generally solitary and nocturnal, spending daytime hours hidden in caves or under rocks to avoid predators. It exhibits territorial behavior around its resting sites but is not aggressive toward humans, often remaining inactive during the day and becoming more active at night for foraging.
Conservation Status
Listed as Least Concern by IUCN.