Assertion: catfish's skin | /r/HasProperty | moist
Facets:
value: with mucus
type: OTHER
value: by an external layer of mucus
type: CAUSE
Source sentences:
text: Catfish tend to be hardy and a few species can survive for some time out of water as long as their skin is kept moist by an external layer of mucus.
text: These catfish can stay out of water for an extended period of time as long as their skin is kept moist with mucus.