First two-headed bull shark discovered

This bizarre shark was found by fishermen in the Gulf of Mexico in 2011, but is now a hot topic again after confirmation that this strange animal is a two-headed shark rather than Siamese twins. That is, they are two heads in a single body and not two "glued" bodies.

When it was found, the animal was already dead. According to researchers at Michigan State University, he could not survive long in the wild.

Duplication

To better understand the shark's condition, some MRI scans were performed, thus finding that the animal had, in addition to two heads, two hearts and two stomachs. According to the researchers, this is known as axial bifurcation and can also happen in humans.

This type of mutation occurs when the embryo begins to divide and transform into two different bodies, but for some reason the process is interrupted.

Some people believe there is a relationship between the shark mutation and the 2010 Gulf of Mexico oil spill, but scientists believe it is too early to make such a statement.