Plastic ‘nurdles’ stop sea urchins developing properly
Chemicals that leach out of plastic are shown to cause fatal abnormalities, including a gut developing outside the body.
sea urchins
The hidden life of kelp: How sea otters, urchins and starfish make ocean forests
In 'Heart of the Coast: Biodiversity and Resilience on the Pacific Edge,' Tyee Bridge explains how sea otters, urchins and starfish each have a role to play in fragile kelp-bed ecosystems.