Female mandrills are more likely to experience pregnancy loss when they are simultaneously nursing an infant, which may reflect a physiological trade-off between current and future offspring, according to a study by Nikolaos Smit at the Max Planck Institute for Evolutionary Anthropology, Germany,...
Source: [Phys.org](https://phys.org/news/2026-11-pregnant-mandrill-monkeys-miscarry-nursing.html)