Terrestrial Vertebrate Richness (image) North Carolina State University Caption This world map shows the combined species richness of amphibians, birds and mammals for the world as an overlay on a topographic map. Credit Data from Clinton Jenkins, BirdLife, and IUCN. Illustration design by Félix Pharand-Deschênes (Globaïa). Usage Restrictions None 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.