Humans have spent billions upon billions of dollars constructing ways to help us cross water.

This spider just sprays a silk thread.

The female Darwin Bark spider, which is no bigger than a thumbnail and was only discovered in Madagascar in 2009, can shoot a web more than 80 feet long.

When the spider sprays its silk threads, they create a sail that catches the breeze and floats onto the spider’s intended target. Yet the silk is stronger than steel and known to be one of the world’s toughest natural materials, according to BBC Earth.

Once the line has been cast, the Darwin Bark can travel over water, jump between trees and build massive traps that span six feet wide.