Assertion: chameleon | /r/HasProperty | due
Facets:
value: to hormones
type: CAUSE
value: to changing pigments in the skin
type: CAUSE
Source sentences:
text: For a long time, it was thought that chameleons changing colour was due to hormones or rapidly changing pigments in the skin but it has instead been found that they change colour using specially adapted skin cells called iridophore cells.