Assertion: sloth's neck vertebra | /r/HasProperty | extra
Facets:
Source sentences:
text: The three-toed sloths also have extra neck vertebrae which allow them to swivel their heads 270 degrees around.
text: They also have two extra neck vertebrae that allow them to turn their heads almost all the way around!
text: Three-toed sloths also have an advantage that few other mammals possess: They have extra neck vertebrae that allows them to turn their heads some 270 degrees.
text: Three toed sloths have extra neck vertebras that allow them to turn their heads 270-300 degrees.