LONDON, England, July 22 -- 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, including the following topics, in its July 28, 2021 edition:

Review articles:

* Senescence: why and where selection gradients might not decline with age