Mammals (IMAGE) Smithsonian Tropical Research Institute Caption The ability to mount a rapid fever response to a pathogen means warm-blooded creatures are not limited by the thermal variation in their habitats. Credit Michael Logan 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.