Gibbons examines the role of climate variability in hominin evolution in Africa, and Pennisi profiles an effort to use sediment cores to document that variability. (science.sciencemag.org)
The savannah hypothesis implicates the long - term trend towards increased aridity and the expansion of the savannah as a major driver of hominin evolution [7]--[8]. (journals.plos.org)
We know from comparative studies in primates that this part of the brain became highly specialized during hominin evolution. (scientificamerican.com)