Saturday, September 13, 2025

New Research Overturns Claims about Humans and Chimps

 From Science and Culture Today:

How many times have you heard it said that the human and chimpanzee genomes are so similar that they are only “1 percent different” at the level of their DNA? This shows, we were told, not only that humans and chimps share common ancestry, but that humans aren’t all that special, which is a common talking point in science journalism and other public discussions. After all, we’re just slightly modified chimps! This “fact” has been discussed so much that it has become what the late biologist Jonathan Wells famously called an “icon of evolution.” 

But now, new data reported in a recently published Nature paper by Yoo et al. has overturned this previous claim. The new findings reveal that human DNA is far more different from chimp DNA than previously thought. 

That should be major news in the science world, yet those involved don’t seem interested in highlighting their discovery. More on that later.

Many times over the years, I’ve discussed how this 1 percent claim about humans and chimps is likely wrong. It is also misleading. No matter how similar humans might be to chimps at the genetic level, anyone who has been to the zoo knows already that chimps and humans are vastly different. After all, we’re the ones writing scientific papers about them—not the other way around. So common sense alone dictates that there is something misleading about that number and how it is used.  But the new data show that the previous statistic isn’t just misleading. It’s flat-out false.

 As I will elaborate in a subsequent article, this team of researchers has published “complete” sequences of ape genomes that were created ‘from scratch’ rather than using the human genome as a template. As a result, for the first time we can attempt a much more accurate assessment of the true degree of difference between the human and chimp genomes. (Read more.)

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