Assertion: hippo's gland | /r/CapableOf | release oily secretion
Facets:
Source sentences:
text: Hippos have no actual sweat glands, but they do have mucus glands, which release an oily secretion frequently referred to as "blood sweat" [source:
text: Hippos have no actual sweat glands, but they do have mucus glands, which release an oily secretion frequently referred to as “blood sweat.