Looking at habitat overlap for Neanderthals and Denisovans, Pusan National University researcher Jiaoyang Ruan and colleagues found patterns of interbreeding between these two hominins that correlate with climate and environmental change in Eurasia. Ruan et al. demonstrate how glacial cycle variability synchronized hominin habitat overlap, Denisovan-Neanderthal interbreeding, and early human gene flow. Image credit: Axel Timmermann. “Contemporary...
