A closer look
We might wear expensive suits and pay taxes, but our skeletons are stubbornly holding out hope that we will grow tails again. The coccyx is a triangular arrangement of bone at the base of the spine, representing a vestigial tail. While we no longer need a tail to balance on branches, the coccyx didn’t just vanish. Instead, it was repurposed to serve as a vital anchor point for various tendons, ligaments, and pelvic floor muscles. So technically, you are just sitting on an evolutionary compromise.
