Wildlife

Mutant two-headed sharks on the rise

Fishermen working near tourists hotspots in the Gulf of California and northern Mexico said they had begun finding more of these terrifying creatures. Each head usually has a jaw full of teeth, two eyes and a brain.

The first two-headed shark is believed to have been spotted off the coast of Australia in 2008 – but sightings are now on the rise. A two-headed bull shark was also discovered south of the US, in the Gulf of Mexico.

Scientists have been left baffled by what causes the mutation – but some believe overfishing might have led to inbreeding among sharks and the passing on of genetic defects.