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  • Around 100,000 years ago (dates vary), ancient humans moved out of Africa and into the Middle

  • East and Europebut, another group of hominids called the Neanderthal were already there.

  • They wanted to be... where the people wereand now we are foreverpart of their world.’

  • So to speak.

  • We sexed them up.

  • Today, we live with a mix of the DNA of every one of our ancestors.

  • Luckily for us, both the human and neanderthal genome have been sequenced.

  • This means, we can look at the full breadth of our DNAs and find places where things match

  • up.

  • For many of us, that includes a few hundred neanderthal bits as well.

  • For example, I have 301 neanderthal markers in my genome.

  • They say, that’s more than most!

  • So, many of us have a little genetics from the valley of Neanderwhich plants a question

  • in a lot of people’s mindsdid putting some Neander-cream in our Homo sapien-coffee

  • make things better or worse?

  • In 2016, the first study to try and discover what genetics the neanderthal added found

  • some shocking results….I want to say first, a lot of this research sort of feelsicky.

  • Ew, we mixed the races and now were somehow weaker!”

  • But, that’s not the case.

  • According to their research, neander-genes influencethe skin, the immune system,

  • depression, addiction, and metabolism,” among other things.

  • They compared the genes and electronic health records of thousands of people, and found

  • those with certain genetics related to neanderthals also had higher incidences of addiction to

  • nicotine -- and thus tobacco use.

  • Another mutation from the neanderthals gave ancient humans hypercoagulability of the blood

  • -- which the researchers said was be an advantage at the time, but today increases risk of clots

  • in the bloodstream.

  • A separate set of researchers found neanderthal DNA may have helped our skin toughen

  • As the genes affected keratin production -- the stuff that makes fingernails and hair stronger.

  • And still others have identified neander-genes that decrease risk of schizophrenia, and more

  • that help the immune system detect fungi and organism invaders!

  • There’s even a study stating that Tibetans can tolerate lower oxygen levels, in part,

  • because of a gene EPAS1 -- which came from mixing with Denisovans -- another separate

  • ancient group related to the neanderthal.

  • But it’s not all positive.

  • Neanderthal DNA also brought some negatives with it -- like marrying into a new family,

  • you get both good and bad!

  • Neanderthal DNA has been implicated in connection to lupus, type-II diabetes, malnutrition,

  • heightened allergiesand so on.

  • All this is pretty amazing stuff, but a new study took the neanderthal mixing a step further,

  • which skeeves me out a bit

  • Theyre claiming an influx of neanderthal DNA could have changed the shape of the skull,

  • and thus the brain.

  • To test their hypothesis they created a system to compare how much neanderthal genetics a

  • group of people had, giving their participants a NeanderScore.

  • Their research pointed to two areas of the brain that were altered after mixing with

  • neanderthals: the visual cortex, which you know, and also the IPSwhich is associated

  • with grasping and coordinating body movements -- it’s part of the reason we can use tools.

  • The thing is, after that it get’s a liiiiiittle shaky, as theyre making assumptions about

  • evolution based on a bunch of hypotheses.

  • In the end, obviously, more research is needed.

  • Genes are very important for some traits, but theyre not 100-percent predictors.

  • For example, even if you have a gene that puts you at high risk for cancer, it’s still

  • not a guarantee.

  • Just like with any progeny, mixing genetics is a risk.

  • As ancient humans mixed their genes with these ancient groups, our evolutionary paths were

  • intertwined.

  • As we learn more about the volumes of information hidden in our DNA -- I, for one, look forward

  • to expanding my family reunions to include even more of my neander valley cousins.

  • After the reunion, we could start a websitebut we’d need a URL from Domain.com.

  • When you buy a domain name from Domain.com, youre taking the first steps in creating

  • an identity and vision for your brand.

  • No domain extension will help tell your story like a .COM or .NET domain name.

  • Get 20% off Domain.com’s already affordable domain names and web hosting when you use

  • coupon code SEEKER at checkout.

  • If youre wondering just how DTF our ancient ancestors were -- you should watch Natalia

  • explain that here.

  • How do you feel about being part neanderthal?

  • Let us know in the comments and please subscribe.

Around 100,000 years ago (dates vary), ancient humans moved out of Africa and into the Middle

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古代人とネアンデルタール人はセックスをしていた。 (Ancient Humans & Neanderthals Had Sex, Here's How It Changed Us Forever)

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    邱昱盛 に公開 2021 年 01 月 14 日
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