Assertion: coccyx | /r/HasProperty | useless
Facets:
Source sentences:
text: The coccyx is not evidence for evolution because it is useless (which is debtable) but because if we are descended from animals with tails, we would expect our development to be a modification of theirs, which, judging by embryonic evidence, it is.70.57.120.186 (talk) 21:35, 15 February 2008 (UTC)