Pygmy Three-Toed Sloth (IMAGE) Zoological Society of London Caption Critically Endangered pygmy three-toed sloths are one of the species that relies on mangrove habitats. Credit ZSL/EDGE Usage Restrictions Please credit. 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.