the.com/coccyx
the souvenir tail your ancestors had, now just a sit-down landmine.
name originGreek for cuckoo, it resembles the bird's beak
fused bonesthree to five vertebrae welded together over time
evolutionary leftovervestige of the tail our ancestors swung from
muscle anchorholds pelvic floor muscles that keep you continent
breakablecracks easily from a single bad fall