LONDON, England, May 8 -- Proceedings of the Royal Society B, a peer-reviewed biological research journal that covers evolution, behavior, health and disease epidemiology, neuroscience and cognition, behavioral genetics, biomechanics, paleontology, molecular ecology and global change, published research articles on the following topics in its May 10, 2023 edition:

Behaviour:

* Apes reciprocate food positively and negatively

* Revealing the roles of egg dar . . .

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