"Across the world, from the Netherlands, the US and the UK, rivers are slowly being re-wiggled, to return them to their natural course. And, in the UK, the rewards are starting to pay off, with fish, birds and invertebrates flocking back to rivers in Cumbria and West Sussex"
https://www.bbc.com/future/article/20240918-how-restoring-rivers-natural-curves-can-prevent-flooding