While reservoirs provide many benefits, they can also change the environment π. When a dam is built, it may flood land where animals and plants live, changing their homes π. Some fish may have trouble swimming upstream to lay their eggs. But there are ways to help! Fish ladders, which are special paths for fish, help them move past the dam πβ¬οΈ. It's important to balance the benefits and impacts, so nature and people can both be happy! π