SciShow graphics guy Louey Winkler discusses LED contact lenses and the implications of enhancing and assisting human beings with technology, and then attempts to stump Hank with a physics riddle. Jessi from Animal Wonders shares Stumpy the Whites tree frog.
Learn more about Stumpy! http://www.animalwonders.org/stumpy.html
Want more animals? Check out Animal Wonders Inc. at http://www.animalwonders.org or on YouTube at https://www.youtube.com/user/anmlwndrs
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