Fish ladders are an adaption of the Tesla valve and allow fish to migrate past a dam without impeding the dam’s function [460x572 - 83KB] | Poal: Say what you want.

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Fish ladders are an adaption of the Tesla valve and allow fish to migrate past a dam without impeding the dam’s function [460x572 - 83KB] (pic8.co)

[–] • 4 pts

TIL fish ladder. And I will always remember that there is a ladder for fish.

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[–] • 1 pt

https://poal.co/s/WhitePeopleThings

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