Years of marine research sunk – because seals ate the evidence

foto: Delta Safari
foto: Delta Safari

When scientists began tagging wild fish to track their movements, the researchers thought they were the only ones listening to the acoustic signals. Unfortunately for the shoals fitted with the devices, experts had not reckoned on the intelligence of hungry seals that learnt to interpret the noise tags as “dinner bells”, beckoning the predators straight to a tasty fish meal.

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