(TELEGRAPH) — A group of fishermen accidentally discovered the world’s first two-headed porpoise, but tossed it back into the sea for fear of getting into trouble.

The bizarre animal was picked up by a Dutch trawler near Hoek van Holland, and is the first known case of conjoined twin porpoises.

Fearing it would be illegal to keep the specimen, the fishermen took a few quick photographs of the dead creature and threw it back into the ocean.

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