Coral reef habitats like this one have become endangered by pollution and other human activities. Earth's biodiversity is a source of beauty, recreation, livelihood, and sometimes survival. But human activities have endangered wildlife in every state.

In the Internet Activities for this chapter, you'll take a look at species that are at risk in YOUR state. Then you can choose three species and research current plans in place to help ensure their survival. Click on Internet Activities at the left to begin.