Extraordinary underwater footage shows orcas making sharp-tail sunfish “explode” by ramming them at high speed. In the clearest scenes, an adult male orca hits a dead sunfish with enough force that the fish bursts into a flurry of small fragments, while another clip shows an adult female ramming a sunfish held in place by another adult female, popping it into pieces. For decision-makers, the headline matters because it is not just gore-adjacent nature content. It is new, first-of-its-kind evidence of a specific, repeatable predation behavior that appears to include cooperation and may involve learning across generations.

The most consequential detail is timing. In July 2024, independent marine biologist Erick Higuera reports he already had seen orcas attacking sunfish in the Gulf of California in various ways, including ripping off flesh, tossing pieces to each other, and ramming or crushing fish against another orca. But the new footage came from Katy Ayres at US non-profit organization Beneath the Waves, captured with a GoPro camera while diving in the Gulf of California. Ayres’s clip shows an adult female holding onto a dead sunfish while an adult male swims upside down towards it at full speed; the female releases the fish at the last second, and the male’s impact fragments the sunfish. A year later, tourist Hector Franz shot a similar underwater scene in the same bay, this time an adult female rammed right-side-up into a sharp-tail sunfish held by another adult female, again popping the fish into pieces.

Put plainly: scientists now have full footage from two separate events showing the same startling mechanism. Combined, the two events mark the first time scientists have seen such behavior by orcas, according to Higuera, Ayres, and their colleagues. That matters because earlier sightings without full footage had suggested parts of the behavior. Now, the “how” is visible enough to discuss mechanism, not just guess at it. And for anyone tracking animal cognition, behavior change, or ecosystem dynamics, mechanism is where claims become testable.

The source also gives a biological reason this tactic might work. Sharp-tail sunfish are among the largest bony fish, weighing up to 2000 kilograms, which means they are not easy prey to break. Higuera points out that sunfish have an outer layer described as “incredibly dense, rubbery, collagenous,” making them harder to bite through. Bursting them open with high-impact ramming could be an effective way to feed because it fractures the body into many small pieces. That is why the behavior might help juvenile orcas feed: breaking prey into bite-sized fragments could reduce the effort required to process food when young animals are still developing strength and hunting skill.

But the footage also raises the question of why the orcas repeatedly deliver such forceful, almost theatrical impacts. Higuera says the behavior may involve play as well as food processing, describing it as “a hunting tactic, but that involves a play game in the process.” He links this idea to “high-octane” adrenaline and “a lot of other hormones” rushing through their bodies, implying excitement alongside feeding. Other researchers in the article add caution. Gordon Burghardt at the University of Tennessee in Knoxville says it is possible the orcas were having fun destroying the fish, but insists play likely would not be the only goal because there is clearly cooperative foraging going on.

Under the microscope, the “play versus feeding” debate becomes a bigger story about how complex behaviors spread. John Davenport at University College Cork in Ireland explains that the “explosive fragmentation seemed mostly to be of the stiff gelatinous capsule” making up more than 80 per cent of the body mass of the sunfish. That detail connects force and physics to age constraints: Davenport suspects calves cannot achieve enough force to do this because their mass is too low, but they can exploit a cloud of objects that contain tasty morsels. In other words, even if calves cannot generate the same impact, they may benefit from watching or joining adult-led tactics.

The article also flags cooperative strategy. Earlier sightings indicated that the entire pod was involved in a strategic attack process leading up to the rammings. Higuera argues these findings point to advanced cooperative hunting skills and even planning, especially adapting techniques to different kinds of prey. He also suggests calves may learn from the popping behavior while getting bite-sized snacks. Meanwhile, Martina Francesconi at the University of Pisa, Italy, raises an evolutionary learning possibility: play can drive behavioral innovation. She says it is possible a behavior like this may have originated in a playful context and later acquired a feeding function, or vice versa. At this stage, they “simply don’t know,” which is scientific humility dressed as a plot twist.

Why executives should care about a war between dolphins and fish? Because this is a real-world example of complex group behavior, learning, and adaptation in a highly intelligent species. The journal reference is Frontiers in Ethology, DOI: 10.3389/fetho.2026.1835536. The second-order implications for boards, funders, and anyone supporting research, conservation, or ecosystem monitoring are straightforward: when you can now observe “planning” and “cooperation” tied to prey-handling, you can design better hypotheses, improve the targeting of field studies, and sharpen conservation priorities. Even if your world is far from the Gulf of California, the underlying lesson is portable: new methods that reveal mechanism can flip a question from “maybe” to “now we can test it.”