New evidence suggests a new theory of “microevolution” has been recently put forward in light of studies done in the Journal Of Anatomy September Issue, that new babies being born are developing with shorter faces, smaller jaws, an extra artery in their arm and no wisdom teeth. According to Dr. Teghan Lucas, from Flinders University:
“A lot of people thought humans have stopped evolving. But our study shows we are still evolving – faster than at any point in the past 250 years,”
Due to an increase in the average persons capability to chew their food, the next generation of people seem to be adapting accordingly with no need for wisdom teeth and by extension making jaws smaller and faces shorter.
With regards to the extra artery, the phenomenon can be traced back to the 1800’s. It has been called the “median artery” and has been observed as an artery present in babies still in the womb, however in most cases the artery would disappear following the birth of the baby, later to be replaced by 2 separate arteries: the ulna and radial.
Nowadays, 1/3 people maintain the existence of their median artery for their whole life. The study also makes the prediction that by the year 2100 everyone will possess a median artery provided this adaptation continues. Professor Maciej Henneberg had this to say:
“The median artery is a perfect example of how we are still evolving because people born more recently have a higher prevalence of this artery when compared to humans from previous generations,”
It’s been noted that the median artery poses no health risks and will actually pos benefits in blood flow to the hands. With the growing rate of humans born without wisdom teeth continuing, it may as well save many people thousands of dollars in dental fees for wisdom teeth removal…isn’t that something.
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