'Mermaid' hidden in ourselves: Bring fish to the teeth

The jaws of human ancestors evolved from fish gills to become strong, flexible, better adapted to the environment and gradually become a superior life form.

A research team led by the University of Bristol (UK) discovered that the oldest jaws were born when our monster "ancestor" and other species chose the gills of fish as the transforming material. .

According to SciTech Daily, to determine how the breathing structure transformed into the bite structure, the scientists collected the shape data of the fossil jaw during early evolution and built mathematical models to unify the structure. list and describe the characteristics.

Dunkleosteus, one of the "monster" progenitors of our family trees and many others, is living proof of the advantage of using the breathing organ itself as the raw material for developing bite structures agile and strong

The first monstrous fish of the Earth were jawless fish, but then more and more jawed fish appeared and they themselves became the great ancestors on the evolutionary tree, helping to give rise to many species later including includes the human race.

According to the Daily Mail, new research has found that the jaws of the most ancient creatures evolved from fish gills, which were fully equipped to become strong and flexible. The oldest jaws had a trade-off between maximizing power and speed: the stronger the less agile, the more agile and the faster attack the weaker the bite.

This trade-off has helped create a "recipe" for each species, making them suitable for different environments and food sources.

It is the diverse evolution of the jaws that allows humans and animals to consume more foods, thereby adapting to many different habitats, easily finding food sources. This is the premise for species to have the opportunity to survive and evolve.

Over time, evolution has varied, and some species can possess both speed and strength of the bite simultaneously. For example, Dunkleosteus, an organism at the top of the food chain during the Devonian period about 382-358 million years ago. It bites both very hard and very fast.

To humans, we seem to possess an intermediate level in which the flexible part predominates.

And the study clearly shows that the evolution of teeth is probably one of the leading factors in the overall evolution of all species, not the brain or the abilities of the limbs as previously thought.