** Orca Behavior and Attacks: A Complex Picture
Orca, or killer whales, have been observed exhibiting a range of behaviors, including hunting large prey like blue whales and great white sharks. Some orcas have targeted boats, with several incidents reported in Europe and North America. While some experts suggest that these attacks may be related to the availability of their preferred food source, Atlantic bluefin tuna, others are still trying to understand why these orcas engage in such behavior.
According to recent reports, orcas off the coasts of Spain and Portugal have sunk several boats, with one incident involving a 50-foot sailing yacht. Rescuers have also been attempting to coax a young orca from a lagoon off Vancouver Island back into the ocean. Meanwhile, footage has captured an unusual case of infanticide, where an orca mom and her son drowned their own calf.
Experts are still trying to understand the motivations behind these behaviors, with some speculating that orcas may be practicing hunting techniques or responding to changes in their environment.
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Source: https://www.livescience.com/animals/marine-mammals/dolphins/orcas