In the Gulf of California, orcas have been observed using a clever and savage technique to paralyze young great white sharks, targeting their nutrient-rich livers. This behavior, witnessed by researchers, showcases the orcas' advanced intelligence and strategic thinking. The orcas flip the sharks upside down, causing a trance-like state known as tonic immobility, which leaves the sharks defenseless. The study's lead author, Jesús Erick Higuera Rivas, a marine biologist, explains that this technique allows the orcas to extract the sharks' livers and likely consume other organs before abandoning the carcass. The attacks, carried out by Moctezuma's pod, an orca group named after a large male, have been documented off the coast of Mexico. This is a significant discovery as orcas hunting great white sharks in the Northeast Pacific is extremely rare, with the last reliable sighting in 1997. The study reveals that orcas targeting juvenile great whites is more widespread than previously thought, challenging the assumption that adult great whites are the primary prey. The behavior is attributed to the increased presence of young great whites in the region due to shifting shark nurseries caused by rising ocean temperatures and climate events. This finding highlights the orcas' sophisticated social learning and the passing down of hunting techniques within their pods, raising questions about the instinctual nature of white shark anti-predator flight responses.
