Will humans lose their tailbone over time?

Humans are unlikely to lose their tailbone, or coccyx, entirely over time, but evolutionary changes may lead to modifications in its structure. The tailbone is a remnant of a tail from our primate ancestors and serves important functions, such as providing attachment for muscles and ligaments. While the coccyx may become less prominent, significant evolutionary changes typically occur over long timescales, and the functional importance of the tailbone suggests it will remain part of human anatomy.