Everyone loves to watch playful sea otters frolicking in coastal waters. But did you know that the kelp forests where they live depend on otters for their survival? Otters are a keystone predator. They prey on sea urchins that would otherwise destroy the habitat that shelters so many other species. This book explains the concept of keystone species in easy-to-understand language. Beautiful full color photographs introduce the watery world of the kelp forests and fun fact boxes break down complex ideas.
