Of chimpanzees and bonobos Modern non-African human genomes contain genomic remnants that suggest that there was interbreeding between ancient humans and archaic hominoid lineages. Now, de Manuel et al. show similar ancestral interbreeding between the ancestors of today's chimpanzees and bonobos (see the Perspective by Hoelzel). The study also provides population-specific genetic markers that may be valuable for conservation efforts. Science , this issue p. 477 ; see also p. 414

Chimpanzee genomic diversity reveals ancient admixture with bonobos