Discovered on the coast of Scotland in 2011, this sea creature considered a "living fossil" was defined as an organism with no defined face or brain. But recent research on this crush challenges our understanding of how the modern brain evolved.
The fish, a cephalocoor of the amphibious species or lancet fishIt is very rare and, although it is considered almost prehistoric, it is seen as a "modern" representative of the first fish that developed spine. The discovery was made thanks to an investigation that covered 3,218 square kilometers and in which water cameras were used.
It has a primitive spinal cord that runs down its back, but with no clearly defined face, no bones or jaws, and a small brain with a single "front eye" sensitive to light. ANDThe organism gives an important idea of how this distant ancestor of humanity should be, and how it could have behaved.
As one of the authors of the study of this organism explains Ildiko Somorjai, from the St Andrews University School of Biology:
The lancet fish is an amazing creature that can tell us a lot about how we have evolved. Humans have huge brains with a large number of anatomical subdivisions to allow the processing of complex environmental information, as well as behavioral and motor control and language. The research in the lancet fish tells us that even a seemingly simple brain can have a complex regionalization, and also strengthens the position of this creature as an important non-vertebrate model to understand the evolution and development of vertebrates, with clear implications for research. Biomedical