Melanin Protection: Chernobyl Black Frogs Reveal Evolution in Action

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Melanin Protection: Chernobyl Black Frogs Reveal Evolution in Action
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The largest release of radioactive material into the environment in human history occurred in 1986, with an accident on April 26 at reactor four of the Chernobyl Nuclear Power Plant. Severe impacts on the environment and the human population resulted from the acute exposure to high doses of radiatio

. These actions make it less likely that individuals exposed to radiation will go on to suffer cell damage and increase their survival chances.

During those three years, we analyzed the dorsal skin coloration of more than 200 male frogs captured in 12 different breeding ponds. These localities were distributed along a wide gradient of radioactive contamination. They included some of the most radioactive areas on the planet, but also four sites outside the Chernobyl Exclusion Zone and with background radiation levels used as controls.

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