Mitochondria are physiologically maintained at close to 50 °C. - Chrétien, Dominique; Bénit, Paule; Ha, Hyung-Ho; Keipert, Susanne; El-Khoury, Riyad; Chang, Young-Tae; Jastroch, Martin; Jacobs, Howard T.; Rustin, Pierre; Rak, Malgorzata (PLoS Biology, 2018)