This is the moment two territorial fish ambushed divers and tried to bite them in the waters off Nusa Penida island near Bali.
The angry triggerfish are shown emerging from the turquoise depths to launch the vicious assault – and even attack the group’s camera.
Triggerfish tend to attack divers when they swim into the sandy areas where the fish have built their nests during breeding season, usually between April in May.
Two triggerfish attacked the divers off the coast of Nusa Penida island near Bali, Indonesia
They were seen trying to bite one diver on the leg and swimming towards the face of another
Video shows the yellow-headed fish swimming into the legs of a man wearing a snorkel and flippers.
Shocked, he turns and heads for the surface and pushes the fish back with his arms.
A second clip shows the fish also baring their teeth at a second diver when he swims into the same area.
Triggerfish tend to lay their eggs in cone shaped nests tunneled into the sandy seabed, and then defend them vigorously.
The fish may warn divers before they attack by raising its dorsal spine, according to okdiversbali.
A triggerfish is shown here circling a diver. They are known to attack when divers come too close to their nests, but may also attack to defend themselves
A triggerfish pictured swimming through the waters around Koh Tao, southern Thailand
Its bite is not poisonous but its razor-sharp teeth are powerful enough to leave a diver needing a few stitches.
The fish grow to around 30 inches in length and can live at depths of up to 170 feet. They are common in the Indo-Pacific ocean.
This clip was filmed on January 22.