Not sodistant fathers

摘要

We may share 96 per cent of our genetic information with chimps, but that 4 per cent allows for some striking differences. Take their system of raising young: "Chimpanzees and bonobos, our closest relatives, don't exhibit paternal care," says Aaron Sandel of the University of Texas. "So it seems that active paternal care as we see in humans evolved sometime on the human lineage, likely when humans formed pair bonds."