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Podcast: Evolution Talk
Episode:

Where There Is No Light
Category: Science & Medicine
Duration: 00:10:14
Publish Date: 2023-04-24 05:00:00
Description:

In 2015,a spelunker named Joachim Kreiselmaier discovered a troglobite, a species that lives in underground environments, in the Danube-Aach cave system in South Germany. This small, pale fish had an elongated body, large nostrils, and minuscule, non-functional eyes. It was the first species of cave fish found in Europe and was related to loaches from the nearby Danube River. These cave fish lost their eyesight and pigmentation not because they stopped needing them, but due to evolution by natural selection. 

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