Valery M. Gavrilov. “Endothermy in Birds and Mammals: Evolution of Metabolism, Body Temperature, Sleep and Activity Duration – An Evolutionary Scenario”. Journal of Advanced Zoology 44, no. S7 (December 31, 2023): 1358–1376. Accessed June 2, 2024. http://jazindia.com/index.php/jaz/article/view/3226.