Fish That Hunt in Packs

Piranhas

Often feared for their teeth, piranhas attack in coordinated groups, stripping prey quickly using swarm tactics in rivers.

Yellowtail (Seriola lalandi)

These sleek predators use speed and teamwork to surround baitfish, driving them into dense balls before attacking.

Humboldt Squid

Not fish, but relevant—they form coordinated groups to hunt large prey, using tentacles and color changes to confuse victims.

Golden Trevally

Working in groups, these fish herd smaller prey into tight areas near coral, launching synchronized attacks.

While usually lone predators, some species of barracuda have been observed using coordinated ambush strategies in groups.

Bluefish

Known for frenzied schooling attacks, they often tear through bait balls, leaving little escape for smaller fish.

Trout (in certain lakes)

During insect hatches, trout have been documented coordinating movement to trap and feed more efficiently.