Wonderful! See Photos Of Fish With Two Heads That Shock Everyone (Photos)

People have been left stunned after fishes with two heads have began surfacing as the real cause is yet unknown.

Scientists have been left baffled as more and more sharks with two heads continue to surface. It is rumoured the mutation was caused due to genetic abnormalities triggered by over-fishing.

According to Dailymail, the puzzling trend started in 2008, when fisherman, Christian Johnson caught a two-headed blue shark embryo off the coast of Australia.

In 2013, a group of Floridian fishermen strained to haul in a large Bull shark, but upon gutting it found that its uterus housed a two-headed fetus.

Blue sharks have so far produced the most two-headed offspring, because they carry large litters of up to 50 babies at a time in the womb.

More recently, Spanish researchers have now found a two-headed Atlantic sawtail catshark embryo while rearing hundreds of sharks for human-health research. An eagle-eyed scientist spotted it through one of the sharks’ characteristic see-through eggs.

The resulting study has been published in the Journal of Fish Biology. The catfish embryo was no ordinary mutant.

It is the first discovered example of a two-headed shark born by a oviparous shark species – a shark that lays eggs. The researchers carefully opened the egg in order to study the strange embryo.

Study leader Professor Valentín Sans-Coma is unsure if the embryo would have survived had they left it to hatch naturally. It is likely that these embryos don’t live for long after hatching, which could explain why two-headed egg-laying sharks have never been found before.

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