TWO- HEADED sharks are appearing at alarming rates – and no one knows why
TWO- HEADED sharks are appearing at alarming rates – and no one knows why
Two-headed sharks sound like a monster ripped straight out of a B -list horror movie , but scientists are increasingly finding more of them worldwide .
Some have suggested that the surge in mutants is due to genetic abnormalities triggered by over -fishing .
The puzzling trend started in 2008, when fisherman Christian Johnson caught a two-headed blue shark embryo off the coast of Australia.
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