The tailbone, or coccyx, is what you have left of the tail your evolutionary ancestors used to help them balance when they lived in the trees. You had a tail once, in fact — we all did. During early development in the womb, the human embryo actually has a tail. The body eventually absorbs it, although in rare cases babies can be born with the tail still intact.
Wednesday 19 December 2018
Mind & Body 4 Useless Human Traits That Once Had a Purpose
When a new species evolves, it doesn't just show up fully formed. It takes many, many tiny mutations through many, many generations to gradually change a fin into a leg, for example, or to make a set of gills disappear. Don't believe us? You can find plenty of evidence right on your own body in the form of what are called vestigial traits. Here's a handful of body parts you have that are useless today, but once had a purpose.
The tailbone, or coccyx, is what you have left of the tail your evolutionary ancestors used to help them balance when they lived in the trees. You had a tail once, in fact — we all did. During early development in the womb, the human embryo actually has a tail. The body eventually absorbs it, although in rare cases babies can be born with the tail still intact.
The tailbone, or coccyx, is what you have left of the tail your evolutionary ancestors used to help them balance when they lived in the trees. You had a tail once, in fact — we all did. During early development in the womb, the human embryo actually has a tail. The body eventually absorbs it, although in rare cases babies can be born with the tail still intact.
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