Not sure, but fish get ladders ;-)

After seeing those tracking maps of the whales not being able to get around due to shipping Yea

And this is why I’m glad the Pacific Northwest is finally removing (some of) the destructive dams. I really wish people would stop referring to dams as being “green”. Sure, maybe they don’t produce a lot of CO2 or methane, but they are terrible for the local environment and the animals which rely on a functioning river.