Check out the “Salmon Cannons” that help salmon jump dams and reach their spawning grounds
Salmon are known for having some of the longest journeys of any living animal throughout their lives. They swim hundreds of miles to reach the exact area they first spawned in order to in order to lay or fertilize eggs. This trip back “home” can be a dangerous one and if the threat of fishermen or hungry bears isn’t enough, obstacles can easily block their paths. For instance, man made hydroelectric dams can prove to be easy to pass through down stream but impossibly to get past going back up. That’s where these salmon cannons come into play. Using some basic physics and a little air pressure, these cannons can “shoot” salmon through at speeds of up to 22 MPH!