Bees trained with artificial flowers of many colours had greater densities of nerve connections than bees that trained among uncoloured or only a couple of coloured flowers. (sciencedaily.com)
Apart from these, the capsules also contain microcrystalline cellulose, silicon dioxide, magnesium stearate, and a couple of colour additives that are allowed by FDA. (pronutrics.co)
They use a couple of colours to create impressive motifs in order to make their collection flawless. (sareelooks.com)