Today’s Video of the Day from the Stowers Institute for Medical Research describes how cavefish adapted to a sedentary lifestyle over tens of thousands of years.
The experts found that the muscle metabolism of cavefish has been genetically reprogrammed over time. As a result, the animals have experienced major changes in their morphology and behavior. Despite these changes, however, the cavefish remain healthy and fit.
The research may provide new clues about the evolutionary consequences of prolonged physical inactivity in humans.
“It’s no surprise that people are moving less and less as technology has advanced,” said Rohner. “With cavefish, we have a unique system where we can study what might happen if people remained couch potatoes over very, very long periods of time.”
Video Credit: Stowers Institute for Medical Research
By Chrissy Sexton, Earth.com Editor
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