Polar Bears Matter

What can we learn about the health of an ecosystem through polar bears? This title takes readers to polar bear habitats to understand why polar bears are suffering, what humans are doing to make matters worse, and the ways humans can help to ultimately save polar bears and Earth. Detailed maps Glossary of key words Index Reviewed Table of contents Animals can help us see the effects of climate change, pollution, and habitat destruction. Bioindicator Species takes the pulse of animals already threatened by human action in order to better understand our changing world.