Sunday, June 10, 2018 by: Isabelle Z.
The study was carried out by the University of Basel’s David S. Thaler and The Rockefeller University’s Mark Young Stoeckle. According to the conventional narrative of evolution involving adaption based on genetic mutations and survival of the fittest, one would expect older species and those with big populations spread across the planet to have greater genetic variation. However, the researchers actually found that 90 percent of the animal species have mitochondrial DNA variation that is similarly low.
The scientists were taken aback by the finding. Thaler said: “This conclusion is very surprising, and I fought against it as hard as I could.” After all, the common notion that the evolution of species on our planet has been a progressive and slow process is rarely challenged by scientific studies.
This study took a different approach than those of the past, which have looked at nuclear DNA. Every animal has DNA in its mitochondria. One of the genes found in mitochondria, COI, is used for DNA barcoding. While nuclear DNA differs dramatically from species to species, animals have the same mitochondrial DNA, making a good basis for comparison.
After analyzing these barcodes across 100,000 species, they discovered strong evidence that almost all animals emerged right around the time humans did. This was because there was no variation in the “neutral” mutations, or slight DNA changes across generations that don’t impact an individual’s odds of survival. The similarity of these neutral mutations to one another can be likened to the rings in a tree in terms of their ability to indicate a species’ approximate age.
'Er not having much luck with this instruction manual Harold! Where are the Words?'
I wonder if the contractor could have been an okker mate from Oz.
The platypus could be the only survivor.
I still like Stu Wildes dematerialisation theory..that sentient life wandered in from another dimension all at the same time. Spoiler alert: it seems to require psilocybin which may upset some viewers.
psilocybin makes it exciting CP. The dematerialisation could explain why things disappear like car keys and spectacles then reappear when you look in that place for the 10th time and 'there they Are!' The fairies spiriting things away to the fairy dimensions my mother spoke of but I didn't take her seriously back then. I do now.