‘The forgotten forest’: how smashing 5.6m urchins saved a California kelp paradise Pollution, warm oceans and hungry urchins devastated Pacific kelp. Now, thanks to divers with hammers, one of the world’s most successful rehabilitation projects has helped it rebound

Urchins can eat a lot of lettuce! Marine ecosystems can be thrown out of balance when there are too many (or too little) of them #urchins #kelp #scubascience #ocean #oceanscience #marinebiology