Core Subject: Science
Instructional Materials: Science
 
2025 Nature Generation Green Earth Book Award Recommended Reading. A hands-on project book about the keystone species keeping habitats healthy! Who’s keeping the ecosystem healthy? In any ecosystem, every species has a role to play. From towering trees and ginormous whales to the smallest microorganisms, plants, fungi, and insects, each species is important to the overall health of the ecosystem. But some of those species play such vital roles that without them, the ecosystem might collapse. These are called keystone species. In Keystone Species: Meet the Animals Key to Ecosystem Health and Biodiversity with Hands-On Science Activities for Kids, readers ages 9 to 12 are introduced to several different types of keystone species from around the world as they discover the crucial roles these animals play in their ecosystems.