Researchers think that a traumatic event may have triggered a change in the behavior of one orca, which the rest of the population has learned to imitate.
The spike in aggression towards boats is a recent phenomenon, López Fernandez said. We estimate that killer whales only touch one ship out of every hundred that sail through a location." "In more than 500 interaction events recorded since 2020 there are three sunken ships.
Most encounters have been harmless, López Fernandez told Live Science in an email.
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