Richard P. Shefferson is Associate Professor at the University of Tokyo's Organization for Programs on Environmental Sciences, and earned his PhD in 2004 at the University of California, Berkeley. He studies the evolutionary ecology of plants and fungi, of which senescence is one key topic. He currently serves as an associate editor for the Journal of Ecology, and regularly serves on funding panels for the National Science Foundation, American Philosophical Society, and other agencies. He has authored more than forty scientific papers in the top journals in ecology and evolution, including Ecology, the Journal of Ecology, and Proceedings of the Royal Society B: Biological Sciences. Owen R. Jones is Associate Professor at the University of Southern Denmark, and earned his PhD in 2004 at Imperial College of Science, Technology and Medicine, London. He has published about thirty papers in journals including Nature, Science, Ecology Letters, and Proceedings of the Royal Society B: Biological Sciences. He currently serves as associate editor of Ecology and Evolution and has served as grant reviewer for the European Research Council, the British Ecological Society, and the Netherlands Organisation for Scientific Research. Roberto Salguero-Gomez is a Natural Environment Research Council (NERC) Independent Research Fellow at the University of Sheffield, an honorary research fellow at the University of Queensland, and a guest visitor of the Max Planck Society. He earned his PhD in 2011 at the University of Pennsylvania and has published around forty papers on life history evolution, population dynamics, ecophysiology, and ageing of plants and animals. He has had extensive editorial experience as associate editor of the Journal of Ecology and Plant Perspectives in Ecology, Evolution and Taxonomy, as well as serving as a guest editor for the Journal of Animal Ecology, and a speciality reviewer for Frontiers in Ecology and Evolution on population dynamics. He has served as a grant reviewer for the National Geographic Society, the National Science Foundation, the Australian Research Council, the French Research Council and the Natural Environment Research Council.