Assertion: polar bear's fur | /r/CapableOf | turn pale shade of green
Facets:
value: due to algae
type: CAUSE
Source sentences:
text: When kept in captivity in warm, humid conditions, the fur may turn a pale shade of green due to algae growing inside the guard hairs.
text: Those polar bears that are kept in captivity in warmer places such as zoos will usually have their fur turned into a pale shade of green.