According to a new study, chimpanzees, like humans, must contend with a confined bony birth canal when giving birth. In humans, the problem was exacerbated by our unique form of upright walking ...
3D simulation of the birth canal of chimpanzees with (B) the fetal head in a fully extended position, the typical head alignment in apes, and (C) the fetal head in a fully flexed position ...
Mike Jordan, animal and plant director, said the birth had sparked "excitement" within the 22-strong chimpanzee group. Mr Jordan said: "While Alice and her new baby are certainly centre of ...
Chimpanzee mothers often remove themselves from the group to give birth, which protects their babies from the infanticides that are sadly frequent in this species. The researchers seemed to have ...