Do Sea Otters Bite? What to Know and How to Stay Safe

Sea otters are marine mammals that inhabit the coasts of the North Pacific Ocean. These creatures are the heaviest members of the weasel family, yet they are among the smallest marine mammals. Their most notable feature is their exceptionally dense fur, which provides insulation in cold ocean waters, as they lack a blubber layer. Sea otters typically reside in nearshore environments, often seeking shelter and food within kelp forests.

The Likelihood of a Sea Otter Bite

Sea otters are wild animals and can bite, though human bites are infrequent. They generally exhibit shy, non-confrontational behavior and prefer to avoid human contact. Their strong, flat molars are primarily adapted for crushing the hard shells of prey like clams, mussels, and sea urchins, not for aggressive encounters with people.

Sea otters have a powerful bite, measured at around 615 pounds per square inch (PSI), a force comparable to that of a black bear. This strength is a specialized adaptation for their diet, allowing them to efficiently consume hard-shelled invertebrates. Most human interactions with sea otters occur without incident, provided appropriate distance is maintained.

Situations Leading to Bites and Prevention

Sea otters may bite if they perceive a threat, such as if cornered or approached too closely. They can also become aggressive when defending their young, protecting their food sources, or if they have become habituated to human presence, often due to being fed by people. Feeding wild animals is prohibited, as it can lead to them associating humans with food and result in bold or aggressive behavior.

A sea otter bite can cause serious injury due to their powerful jaws and sharp teeth, carrying a risk of bacterial infection. While rare, rabies is also a concern with any wild animal bite, necessitating prompt medical attention. If sea otters display unusual aggression towards humans or pets, wildlife authorities may remove the animal from its habitat.

Maintain a safe distance from sea otters, generally at least 60 feet or five kayak lengths away. If a sea otter notices you, you are likely too close and should move away. Never attempt to feed sea otters or encourage interaction, and keep pets leashed near their habitats, as otters can harm dogs.

If a sea otter approaches your kayak or escalates an encounter, calmly paddle away, make yourself appear large, and make noise by splashing water with your paddle. Do not attempt to touch or pet the animal. Should a bite occur, fight back to disengage, exit the water immediately, and seek medical attention for wound care and potential rabies prophylaxis. Report the incident to local wildlife authorities.