The worst nuclear reactor meltdown in history took place at Chernobyl. Since the residents left after the 1986 catastrophe, it has become one of the biggest nature reserves in Europe.

A group of Spanish zoological researchers wrote in The Conversation that they became interested in the strange, black-tinted Eastern tree frog because they are usually a bright green one.

The team from the University of Oviedo and the Doana Biological Station decided to study the Eastern tree frog after finding the first swarthy amphibian.

The zoologists wrote in their Conversation essay that they captured 200 male Eastern tree frogs, known sometimes as "Saint Anthony" or "San Antonio" frogs, from 12 separate breeding ponds "along a wide gradient of radioactive contamination."

The Eastern tree frog in the regions surrounding the now-abandoned nuclear reactor seem to have undergone a sort of rapid evolution in order to survive the 2014–2018 2014–2018 2014–2018.

The authors of the Conversation essay, Germn Orizaola and Pablo Burraco, believe that the darker colored frog was better protected from the meltdown's radiation due to the fact that it had more melanin in it. They created more and more dark-tinted tree frog in their wake.

Natural selection is being played out in front of us. That's great.

The researchers wrote that the process of natural selection may explain why the dark frog is the dominant type within the Chernobyl exclusion zone.

They hope the current war in Ukraine will end soon because it's put an understandable damper on scientific study in the area.

Chernobyl black frog show evolution in action.

The UN watchdog says the radiation from Chernobyl is abnormal.