We as humans are evidently tailless, the only evidence remaining that we once did being through the Coccyx, a small remnant of our vestigial tails that through our evolution became less and less advantageous as our ancestors became more terrestrial.

The specifics of said loss, long since remaining unknown, have been covered in a recent paper that has unearthed that a simple genetic change led to how present our tails are today, that being through an itinerant, or travelling piece of DNA that moved to a new chromosomal region which fundamentally changed how great apes formed a key developmental protein. Primate genome sequencing projects have made possible the identification of causal links between the phenotypic and genotypic changes in these animals, as well as enabling and assisting in the search for hominoid-specific genetic elements which control tail development, and this study is one key example of this. I hope you enjoy.

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Weirder Stuff - Geographer
Infinite - SergePavkinMusic

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