Orcas Are Exploding Sunfish

The orca pod had already killed the sunfish. They had eaten what they wanted from the body. Then one adult gripped the carcass by the tail, held it steady in the water, and another came in from below at full speed, belly-up, and detonated it.

The blast scattered the sunfish into thousands of fragments. Researchers going back through the footage frame by frame found a coordinated, repeatable behavior that nobody had documented before.

Sharptail sunfish in Mexico's Gulf of California can weigh more than 4,400 pounds. They are among the heaviest fish in the world, with thick, rubbery skin and a dense collagen layer beneath it that resists tearing. The orcas had already breached the body to consume the organs. The explosion came after.

Marine biologist Erick Higuera first witnessed the behavior in December 2021 and felt its force before he understood what he was seeing. High-quality underwater video from 2024 and 2025 confirmed it as repeatable. In both incidents, researchers documented "ram-to-fragment" behavior: one orca stabilizes the carcass, another torpedoes in from depth, and the fish shatters. In both cases a juvenile was nearby and ate the small pieces the adults left behind.

Two explanations remain in play: the adults were processing the fish into portions a young orca can manage, since it can't yet handle the tough outer skin, or they were doing it because they found it enjoyable. Or both. Orcas are documented carrying dead salmon on their heads, removing shark livers with surgical precision and disabling boat rudders off Portugal. Adding "detonate a 4,400-pound fish" to the repertoire tracks.

What nobody knows is whether this pod invented it or whether it is spreading through Gulf of California orca culture.

Read the full story at Smithsonian Magazine, July 23, 2026

Read the research at Frontiers in Ethology, July 23, 2026

Hot Take: Coordinating a high-speed explosion of a fish you already killed, with a partner you briefed in advance and a juvenile waiting for the pieces, is not playing with your food. It is dinner theater.