What makes a bridge strong? It doesn't always have to be out of metal or concrete to be strong. Can you imagine a bridge that's created entirely of living tree roots? Some Indian tribes became masters of making such living bridges. Some of such bridges are over 180 years old! Let's take a look at this one and 14 more natural phenomena that have scientists stumped. #brightside #naturalphenomena #livingbridge Preview photo credit: Boy Ascending Ladder Made Out Of Tree Roots: By EAST NEWS, https://www.eastnews.ru/pictures/picture/id/24974001/i/0/t/0 Animation is created by Bright Side. —————————————————————————————- Music by Epidemic Sound https://www.epidemicsound.com/ Check our Bright Side podcast on Spotify and leave a positive review! https://open.spotify.com/show/0hUkPxD34jRLrMrJux4VxV Subscribe to Bright Side : https://goo.gl/rQTJZz —————————————————————————————- Our Social Media: Facebook: https://www.facebook.com/brightside/ Instagram: https://www.instagram.com/brightgram/ 5-Minute Crafts Youtube: https://www.goo.gl/8JVmuC Stock materials (photos, footages and other): https://www.depositphotos.com https://www.shutterstock.com https://www.eastnews.ru —————————————————————————————- For more videos and articles visit: http://www.brightside.me/ Our App http://bit.ly/3a4dTr5

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