07/25/2026
Orcas smash massive fish into bite-size pieces – seemingly driven by a desire to have gory fun.
Researchers have documented two incidents in the Gulf of California in which the whales used a coordinated “hold-to-ram” technique on dead sharp-tail sunfish.
In each case, one orca gripped the sunfish by its tail while another accelerated toward it. The first whale released the carcass moments before impact, allowing the second to smash directly into it and scatter fragments through the water.
The sunfish were already dead, suggesting the behavior was used to process the prey rather than kill it. Scientists said the technique may break the fish’s tough body into smaller pieces that are easier for juvenile orcas to eat. A young whale was seen feeding on fragments after one of the attacks.
Another possibility is that the whales were simply playing. Orcas are highly intelligent, social animals known to play with food, throw kelp, surf in boat wakes and adopt temporary behavioral trends.
Sharp-tail sunfish are among the world’s largest bony fish. They can grow longer than 10 feet (3 meters) and weigh up to 4,400 pounds (2,000 kilograms).
The first event was recorded in July 2024 and the second in September 2025. Both involved adults coordinating their movements with striking precision, a behavior researchers said could also play a role in teaching younger whales.
Scientists need more observations to determine whether the technique is primarily used to prepare food, teach juveniles, strengthen social bonds or simply provide entertainment.
Read the study:
"Fragmentation of sharp-tail sunfish (Masturus lanceolatus) caused by high-impact ramming behavior in orcas (Orcinus orca)." Fronteirs in Ethology