In Czech, there was a plan to restore a wetland by constructing small dams, which was stuck in red tape since 2018. Eventually in 2025, a bunch of beavers decided that they are done waiting and constructed the dams themselves, saving the goverment about $1.2 million. en.wikipedia.org/wiki/Beaver-...
en.wikipedia.org
Beaver-engineered dam in the Czech Republic - Wikipedia