image: A thermal image of tegu lizards that have remained in their burrow all night. Body temperatures are elevated above the ambient temperature. This material relates to a paper that appeared in the Jan. 22, 2016, issue of Science, published by AAAS. The paper, by G.J. Tattersall at National Institute of Science and Technology in Comparative Physiology (INCT-Fisiologia Comparada) in Rio Claro, Brazil, and colleagues was titled, 'Seasonal reproductive endothermy in tegu lizards.' view more
Credit: [Credit: Glenn J. Tattersall]