Black chia seeds are higher in antioxidants than white chia seeds which is to be expected as antioxidant content is associated with dark coloration in plants. (teechia.com)
And the tarantula's dark coloration reminded Hamilton of Cash's preference for head - to - toe black attire, which had earned Cash the nickname, «The Man in Black.» (scientificamerican.com)
Work by biologists from the University of Miami shows that crabs with dark coloration choose dark sand while crabs with light coloration choose light sand. (sciencedaily.com)