In the Pink: Colour from Carotenes
This Catalyst article explains how in nature, bioamplification causes substances to become more concentrated as they move from eater to eaten along a food chain. This sequence occurs in relation to the concentration of pesticides like DDT along a food chain, and causes problems for those animals, like birds of prey, at the top. However, bioamplification can be more benign than that. It leads too much of the colour in nature as the article explains.
This article is from Catalyst: Secondary Science Review 2008, Volume 19, Issue 2.
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