Development of new food-sharing relationships among nonkin vampire bats
G. G. Carter, D. R. Farine, R. J. Crisp, J. K. Vrtilek, S. Ripperger, R. Page
The paper shows that unfamiliar vampire bats escalate low-cost grooming before forming high-cost food-sharing relationships, suggesting a 'raising-the-stakes' strategy in social bonding.
bioRxiv · Oct 5, 2019 · PreprintAnimal Behavior & Cognition