Can Anglerfish Bite Humans? What Science Says

Anglerfish, deep-ocean creatures, have adaptations that allow them to thrive in extreme environments. While their formidable features might suggest a threat, understanding their natural habitat and behaviors reveals a different reality regarding human interaction.

Anglerfish: Deep-Sea Dwellers

Anglerfish are inhabitants of the deep ocean, found at depths ranging from 0 to over 2,600 meters. They can be pelagic (in the water column) or benthic (on the seafloor). Many species are small (2-18 cm), but some females grow larger (1-2 meters).

These deep-sea residents are characterized by their large heads and expansive, crescent-shaped mouths. Their jaws are lined with bands of long, fang-like teeth that point inward, designed to prevent captured prey from escaping. Anglerfish also possess flexible bones and highly distensible jaws and stomachs, allowing them to swallow prey up to twice their own body size.

Can Anglerfish Bite Humans?

Anglerfish pose virtually no threat to humans. Their primary feeding strategy involves ambushing prey, which they lure using a bioluminescent organ called an esca, a modified fin ray that glows in the dark depths. Their diet consists mainly of small fish, squid, and crustaceans found in their deep-sea environment.

While anglerfish possess sharp teeth and powerful jaws, these are adapted for capturing and consuming their typical prey, which are much smaller than humans. They are opportunistic feeders, meaning they consume whatever fits into their mouths. Given their size and the nature of their diet, a human would simply not fit within an anglerfish’s predatory scope. Anglerfish are not aggressive creatures; they are ambush predators that wait for prey rather than actively pursuing larger targets.

Encountering Anglerfish

The likelihood of a human encountering a live anglerfish in its natural habitat is extremely low. Anglerfish reside in deep-sea environments where immense pressure makes it impossible for humans to survive without specialized submersibles. Most human interactions with anglerfish occur through scientific research expeditions using deep-diving vehicles or when anglerfish are incidentally caught as bycatch in deep-sea fishing nets.

Even in rare instances where anglerfish are brought to the surface, they do not survive due to the drastic change in pressure. Occasional reports exist of anglerfish washing ashore, but such events are uncommon and usually involve individuals in poor condition. The combination of their remote habitat and non-aggressive feeding behavior ensures that anglerfish remain a creature of scientific fascination, far removed from human interaction.