STATES CHRONICLE – Two-headed sharks do exist, even if it sounds just like a terrifying movie scenario. Researchers from National Geographic have revealed the existence of this strange being which seems to be found in a continuously increased number in the oceans around the world. The study which was conducted by scientists from National Geographic has unveiled that these creatures became more and more common in the waters around the world.
Could his represent a new species or is just a gene mutation which happened several times? Several breakthroughs from the past have proved the existence of the pre-term sharks which had two heads. It was first uncovered in the Indian Ocean and off the coast of Florida.
Some similar creatures were unveiled around Mexico. Men of science from Spain have argued that the shark embryos which they were testing in their laboratory have also developed two heads. The embryo of an Atlantic saw tail catshark had displayed two different heads to a single body due to gene mutations. This represented one of the occurrences when the phenomenon happened in an egg-laying member of this species.
The team of researchers from Spain has claimed that this two-headed shark had a single brain and a single spinal cord known as notochord, but they displayed two sets of eyes and two mouths, one for each head. It also had five branchiae on each side of the body.
The two-headed shark also had different stomachs, two livers, and distinct hearts. What is interesting it’s that the two-headed creature shared the same intensities, reproductive system and kidneys with its twin. This is indeed a strange situation.
Although scientists did not manage to identify the primordial cause of this terrible happening, they blame these mutations on pollution, infections and overfishing. The overexploitation of the species could have resulted in the shrinking of the gene pool.
There are a lot of theories which lie at the foundation of the two-headed shark’s mutation. One of the Spanish researchers, Valentin Sans-Coma, together with his team has argued that a genetic disorder caused this terrible accident. The embryos were grown in a laboratory together with other eight hundred species.
Other reports which were published by researchers stand as evidence for two-headed turtles, snakes, and dolphins. Scientists could not found an accurate result to these gene mutations which seem to have damaged a lot of species.
Image source: wikipedia