Zebras at Sunset (IMAGE) Terry Collins Assoc Caption Biodiversity -- the essential variety of life forms on Earth -- continues to decline in every region of the world, significantly reducing nature's capacity to contribute to people's well-being, according to a new report from 550 IPBES scientists after three years of work. Credit Galyna Andrushko/Shutterstock.com Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.