Orcas Ramming Yachts in Iberian Waters

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For over five years, a perplexing phenomenon has been unfolding in the waters off the Iberian Peninsula, as orcas, also known as killer whales, have repeatedly engaged with boats, often focusing on damaging rudders. The frequency of these interactions has steadily increased, with at least 500 recorded incidents in the Strait of Gibraltar as of September 2025. While initially described as 'attacks,' scientists are increasingly cautious about using such terminology, suggesting the orcas' motivations may be more playful than hostile.

Why it matters

The behavior is largely attributed to a specific pod of Iberian orcas, a critically endangered population numbering only a few dozen individuals. The focus on rudders and the apparent learning and refinement of the technique suggest a deliberate targeting of a specific component, rather than random aggression. The implications extend beyond the immediate concerns of sailors, as the disruption to maritime traffic could have economic consequences for the region, and the increased interaction with boats carries the risk of collisions and potential harm to the animals.

The details

The first documented encounter occurred in May 2020, but the frequency of these interactions has steadily increased. Recent incidents, including one on September 13, 2025 off the coast of Portugal, have even resulted in sailboats sinking, though thankfully, no serious human injuries have been reported. The orcas push and break the rudders, causing water to enter the boats and, in some cases, leading to sinking. This pattern suggests a deliberate targeting of a specific component, rather than random aggression. The type of rudder also appears to be a factor, with Iberian orcas showing a preference for interacting with certain designs.

• The first documented encounter occurred in May 2020.
• As of September 17, 2025, according to reports, at least 500 interactions between orcas and vessels have been recorded in the Strait of Gibraltar.
• A recent incident occurred on September 13, 2025 off the coast of Portugal.

What they’re saying

What’s next

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