Why You Have to Blink to Walk

The video explores the evolution of blinking in tetrapods, focusing on the transition from aquatic to terrestrial life. It highlights the role of blinking in protecting eyes, keeping them moist, and clearing debris. The study of mudskippers, amphibious fish that blink differently, provides insights into the evolution of this adaptation. The research suggests that blinking evolved as a crucial adaptation for life on land, with multiple functions being equally important. This convergent evolution indicates that blinking is essential for terrestrial adaptation in vertebrates.

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