Seal pups were dying from a 'corkscrew killer' on a Canadian island. It turned out to be cannibals.

5 hours ago 2

Dead seal pups on a Canadian island have been found with mysterious spiral-shaped injuries for years. The wounds were thought to be the work of sharks or boat propellers, but new research confirms a different cause.

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3. Seal pups were dying from a 'corkscrew killer' on a Canadian island. It turned out to be cannibals.