Pregnant mandrill monkeys are more likely to miscarry when also nursing an infant

A study published in PLOS Biology reports that female mandrills are more likely to experience pregnancy loss when they are simultaneously nursing an infant. The researchers suggest this may indicate a physiological trade‑off between caring for a current offspring and supporting a future pregnancy. The study was conducted by Nikolaos Smit of the Max Planck Institute for Evolutionary Anthropology in Germany, the University of Turku in Finland, and colleagues.