Orcas in the Gulf of California have been filmed using a coordinated ramming technique on large sharp-tail sunfish carcasses, causing the fish to break into thousands of fragments. Multiple reports describe incidents in which one or more orcas hold the sunfish in their jaws while another whale strikes the target at high speed, producing the “exploding” effect. Researchers say this is a previously undocumented feeding-related behaviour. Several sources report that the sunfish were already killed before the ramming occurred, which leads to multiple possible explanations. One hypothesis is that the impacts reduce the size of the prey into more manageable pieces, helping younger or smaller orcas feed more easily or more efficiently digest the food. Another hypothesis is behavioural play or entertainment, particularly because the prey’s condition suggests the ramming may not be required to kill it. A paper published in *Frontiers in Ethology* describes separate observations of the behaviour and summarizes the researchers’ reasoning. Across outlets, the accounts focus on the shared technique—holding the carcass and then ramming it until it fragments—rather than a single definitive cause.