Do Blobfish Bite? Explaining Their Feeding Behavior

The blobfish is often misunderstood due to the image that made it famous—a pink, gelatinous mass with a prominent frown. This sagging appearance is not how it looks in its natural habitat. Instead, this form is a post-mortem result of severe decompression after being pulled from the extreme depths of the ocean. Understanding the blobfish’s true nature requires examining the specialized environment to which it is uniquely adapted.

Understanding the Blobfish’s Deep-Sea Environment

The natural home of the blobfish is the abyssal plain, lying between 600 and 1,200 meters (2,000 and 3,900 feet) below the surface off Australia and New Zealand. This deep-sea zone is characterized by crushing pressure, which is 60 to 120 times greater than the pressure at sea level. The blobfish’s biology is an adaptation designed to survive these intense conditions.

The blobfish does not possess a gas-filled swim bladder, which would be crushed under the tremendous pressure of its habitat. Instead, its body is composed of a gelatinous mass of tissue that is only slightly less dense than water. This jelly-like structure contains minimal muscle and soft bones, allowing the creature to maintain neutral buoyancy. This adaptation lets the blobfish float effortlessly just above the seafloor, ensuring an energy-efficient existence in a food-scarce environment.

Passive Feeding Mechanisms

The blobfish’s low-density body dictates its feeding strategy. This animal is a sedentary, ambush predator that expends virtually no energy actively hunting prey. It relies on its buoyancy to hold it in place while it waits for a meal to drift into its path.

The mouth and jaw structure confirm the blobfish is not equipped for aggressive biting or tearing. It lacks teeth and possesses large jaws that allow it to consume prey whole. Its diet consists primarily of small, slow-moving invertebrates, such as crustaceans and mollusks, and other edible organic matter that floats by. Consumption is achieved through passive ingestion, where the blobfish simply opens its mouth and gulps down whatever passes in front of it.

Interaction and Threat Level to Humans

The answer to whether a blobfish bites is no. Given its specialized biology and feeding habits, the creature does not possess the anatomy or the behavioral drive to attack. The practical reality of human interaction eliminates any possibility of a threat.

The blobfish lives far below the maximum depth reachable by human divers, making a direct encounter impossible in its natural environment. Humans typically encounter this fish only when it is accidentally caught as bycatch in deep-sea bottom trawling operations. By the time it is brought to the surface, the rapid change in pressure has caused fatal decompression. Whether alive in its deep-sea home or deceased on a fishing boat, the blobfish poses zero threat to human beings.