Three-stages (IMAGE) Cornell University Caption L-R: Composite infra-red images of a Blue-throated Mountain-gem in normal sleep state, transitioning to torpor, then in torpor. Images courtesy of Anusha Shankar, Isabelle Cisneros, Sarah Thompson, and Don Powers. Credit Images courtesy of Anusha Shankar, Isabelle Cisneros, Sarah Thompson, and Don Powers. Usage Restrictions For use only with articles about this research. License Original 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.