One of the distinguishing features of Homo sapiens is its absolutely and relatively large
brain. This feature is also seen in less extreme form in some fossil Homo species. However,
are increases in brain size during the Plio-Pleistocene only seen in Homo, and is brain
enlargement among Plio-Pleistocene primates confined to hominins? This study examines
evidence for changes in brain size for species and lineage samples of three synchronic East
African fossil primate groups, the two hominin genera Homo and Paranthropus, and the …