Assertion: leech | /r/CapableOf | produce natural anticoagulant
Facets:
Source sentences:
text: Leeches can eat six to eight times their body weight, but rather than sinking to the bottom of the body of water they live in because of such a fully belly, leeches produce a natural anticoagulant or blood thinner, which keeps the blood in them from thickening and clotting and allows them to stay mobile [source: PBS].