In addition, the embryo sharks had two copies of the heart, stomach and liver.
Scientists from the University of Malaga (Spain) in the research found the embryo of a two-headed shark. A feature in this species was discovered for the first time.
The researchers found the embryo in the course of work for the study of the cardiovascular system of sharks. In their Arsenal were 797 instances of material, but one of them was different from the other embryos. He had two heads with eyes, mouth and the systems of the brain, as well as two chord and the five gills on both sides.
In addition, the embryo sharks had two copies of the heart, stomach and liver. However, his body received only one intestine, sex organs and kidneys. The embryo of the leopard sharks were the first species oviparous sharks, which was found diapale.
In nature this phenomenon is extremely rare, because the sample will keep for further research with the help of euthanasia. Scientists have to find out what are the causes of diciplin (two-headed mutation) in sharks, as well as the differences in oviparous sharks and those who give birth to their offspring.
