Radiant Solar Energy and the Function of Black Homeotherm Pigmentation: An Hypothesis

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Science  13 Jan 1967:
Vol. 155, Issue 3759, pp. 196-197
DOI: 10.1126/science.155.3759.196


White zebra finches exposed to artificial sunlight used an average of 22.9 percent less energy after they were dyed black. The hypothesis that black homeotherm coloration functions primarily to maximize absorption of radiant solar energy is suggested. This hypothesis may explain the dark skin pigmentation of certain human populations.