This article is about the Boneshark. You may be looking for the Sand Shark.

The Boneshark is a large, highly aggressive fauna species. It is an actively fierce predator and mainly dwells in Biomes such as the Underwater Islands, Crag Field, or the Bulb Zone.

Appearance Edit

The Boneshark is a large, fully armored creature with a large head featuring spikes extending backwards from many sides of its head, and a long, armored body.

Its head features a large mouth full of small, sharp teeth, which rather than normal teeth, are an extension of the exoskeleton, and two bioluminescent green eyes.

It lacks a dorsal fin but has two spiked pectoral fins and flukes at the end of its tail. It is of a dull purple color, with orange patterns on its head and back.

Behavior Edit

The Boneshark is carnivorous, so one can be seen chasing other smaller fish, such as the Peeper. It is highly aggressive, often going so far as to attack members of its own species. Once the player is spotted, it will charge at them while screeching.

Bonesharks are extremely quick and are more than capable of catching up to the player. To avoid them, swim in a circular motion until the creature loses interest or get into a submersible. The Repulsion Cannon is also an effective tool to fend them off. The Boneshark's attack deals 30% to the player. It deals less damage to submersibles, but is still a threat.

Bonesharks are also attracted to lights. Because of this, the creature can also be distracted using Flares or by using a Creature Decoy.

Bonesharks can be seen fiercely guarding their eggs, and will attack the player should they get too close.

When Bonesharks are damaged, they will turn to face their attacker and attack back, usually causing the attacker to flee.

Spoiler alert: The following section contains story related material.

The Bonesharks inside Primary Containment Facility's Aquarium are not hostile to the player, and are thus not a threat.

Energy ValueEdit

BonesharkArrow-right (1)BioreactorArrow-right (1)Energy×4000
Bone Shark EggArrow-right (1)BioreactorArrow-right (1)Energy×500

Data Bank EntryEdit


A powerful predator that lives in small groups and fiercely defends its hunting grounds.

  1. Thickly-armored Exoskeleton:
    Suggests defensive adaptation either to larger predators, or in-species aggression.
  2. Large Eyeballs:
    Consistent with high light sensitivity, likely for hunting of luminescent prey in low-light environments.

Generally slow and unresponsive, they will act with uncompromising aggression against any threat to their territory.

Assessment: Avoid

Gallery Edit

Trivia Edit

  • The Sea Emperor Leviathan and the River Prowler previously used the AI of the Boneshark.
  • Bonesharks once dwelled in large numbers in the Grassy Plateaus.
  • Through a mistake, Bonesharks were incorrectly scaled and around half the size they were intended to be for the majority of the early access phase of Subnautica. This was fixed in the Voice of the Deep Update of 2017, where they were given a 50% size increase, then another 10% size increase on top of that.
  • The Boneshark, along with the Lava Lizard and River Prowler, use to be aggressive to the Cyclops if too much attention was drawn to it.