Articles on Natural pigments
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Instead of displaying myths, Samburu rock art reveals real-life stories and is made as a leisure activity.
The study reveals changes in the functions of melanin over 500 million years.
All chameleons are able to change colour at least a little bit, but some species can do it much more than others.
A simple chemical reaction turns the red pigment of beets into a new, nontoxic blue dye.


