Assertion: caterpillar's spine | /r/HasProperty | about 1 mm
Facets:
Source sentences:
text: The female utters a loud yowl as the male pulls out of her because a male cat's penis has a band of about 120–150 backward-pointing penile spines, which are about 1 mm (1⁄ 32 in) long; upon withdrawal of the penis, the spines rake the walls of the female's vagina, which acts to induce ovulation.