Why You Have to Blink to Walk

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This SciShow video is supported by Linode! Picture fish transitioning to life on land to eventually become four-footed vertebrates. Scientists have set out to determine why blinking evolved, and whether it was directly related to our move to land, and they did this by studying amphibious fish called mudskippers. The benefits of blinking range from protecting yourself from an incoming poke to keeping things moist. It appears the evolution of mudskipper blinking is directly tied to life on land, and one function didn’t appear more important than the others when it came to blinking benefits. All signs point to our ancient relatives evolving to blink as part of their quest to become terrestrial, even though they evolved separately. You can get a $100 60-day credit on a new Linode account at linode.com/scishow. One of the great things about the internet is its worldwide reach. The Akamai Global Network is available in over 4100 locations and 135 countries, so no matter where you are in the world, you can access the internet. By the end of 2023, they plan to add even more sites to improve service. At SciShow, we strive to make things accessible, and Linode is with us in this mission. To get started with their brand new servers, click the link in the description or head to linode.com/scishow to get a $100 60-day credit on a new Linode account. Thank you for watching from all over the world! [♪ OUTRO]