Researchers discovered an unusual behavior of killer whales, also known as "orcas." They found out that the marine animals mysteriously attacks sailboats near Portugal and Spain.
However, after studying a small population in the Strait of Gibraltar, the experts said that the orcas' force to interact with the boats is unusual. The Spanish maritime authorities warned the sailboats not to get near the marine creatures.
However, sailors said that it is difficult to keep their distance since at least one group of orcas appears to be following the boats. The experts explained that it is too early to understand the "highly unusual" and "concerning" behavior of the killer whales. But, they suggest that the orcas' actions might indicate that they're stressed.
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Written by: Giuliano de Leon.
