Barry Lovegrove is professor emeritus at the University of KwaZulu-Natal. He is an evolutionary physiologist, specialising in the diversity of metabolic adaptations in birds and mammals. He obtained his PhD from the University of Cape Town in 1987, undertook post-doctoral studies at universities in both America and Germany, and is a National Research Foundation A-rated scientist. He is also the author of Fires of Life: Endothermy in Birds and Mammals (Yale University Press). In 2017 he gave the prestigious Irving-Scholander Memorial Lecture in Fairbanks, Alaska.