Assertion: monotreme's gland | /r/CapableOf | secrete lipid
Facets:
value: for coating the fur
type: PURPOSE
Source sentences:
text: Ruben & Jones (2000) note that the Harderian glands, which secrete lipids for coating the fur, were present in the earliest mammals like Morganucodon, but were absent in near-mammalian therapsids like Thrinaxodon.