Home BiologySome People Are Growing an Extra Artery – What that Means for Human Evolution
BiologyBy Joe Burgett -

Some People Are Growing an Extra Artery – What that Means for Human Evolution
[Image via Roman J Royce/Shutterstock.com]

The Extra Artery Humans Are Keeping

During the human evolution process, we have often dropped things from our genetic makeup or altered them. Sometimes, things might develop or show in the womb but won’t be present when a baby is born. It used to be that we had an extra vein running down our forearm that formed temporarily in the womb. Yet this always vanished before birth. Now, many people are still being born with this according to researchers at Flinders University and the University of Adelaide.

Some People Are Growing an Extra Artery – What that Means for Human Evolution
[Image via Science Direct]
Essentially, we are now seeing people born with what is basically an extra channel of vascular tissue that flows from under the wrist. The researchers found that the consistent nature of people being born more and more with this goes back to the 18th century. Roughly 10% were born with it in the mid-1880s but that popped up to 30% during the 20th century! Our median artery works just fine in humans, so anything extra is not exactly useful. Some assume that having this could offer some sort of extra aid like more dexterity or strength. Rather, it makes one more prone to carpal tunnel syndrome than anything else.

Some People Are Growing an Extra Artery – What that Means for Human Evolution
[Image via Panuwat Phimpha/Shutterstock.com]

Human Body Temperature Is Lowering

Human evolution can be a really cool thing. One would assume that we would not often see it in action among humans in such a major way. Since evolution is a slow process, we have to look at humans from an entire history, not just a few years. Yet the climate has only risen for the world. The massive rise is a direct result of human activity that is now out of control, along with the hole in our Ozone layer. As a result, humans are overheating.

Some People Are Growing an Extra Artery – What that Means for Human Evolution
[Image via BlueSkyImage/Shutterstock.com]
Since the world also goes through a normal climate change, this has to happen along with what we are doing to it. Thus, making things happen quicker. This is thought to be why humans have dropped in temperature as a way to adapt. While the average temperature had been 98.6 Fahrenheit for most average, healthy humans. Today, we are seeing people more and more with temperatures of 97.3 to 97.9 degrees. As we know by climate, even one degree can be important.

Where do we find this stuff? Here are our sources:

National Institutes Of Health

Center for Disease Control & Prevention (CDC)

United States Federal Food & Drug Administration (FDA)

National Academy of Sciences

Stanford University

University of Oxford

University of California – Riverside

Flinders University

University College of London (UCL)

University of Adelaide in Australia

Houston Methodist Medical Center

New York Times

Smithsonian Magazine

Live Science

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