Social bonds between nonkin are common, but less stable, in a mixed-related society - Zhuli Cheng; André S. Pereira; Susan Anton; Lauren Brent; James Higham; Melween Martinez; Amanda Melin; Michael Montague; Michael Platt; Jerome Sallet; Noah Snyder-Mackler; Josué E. Negron-Del Valle; et al. (Animal Behaviour, 2026)