Jonathan Birch, Ph.D. is Professor of Philosophy at the London School of Economics and Political Science (LSE) and Principal Investigator (PI) on the Foundations of Animal Sentience project. In 2021, he led a "Review of the Evidence of Sentience in Cephalopod Molluscs and Decapod Crustaceans" that led to invertebrate animals including octopuses, crabs and lobsters being included in the UK government's Sentience Bill. In addition to his interest in animal sentience, cognition and welfare, he also has a longstanding interest in the evolution of altruism and social behaviour. His first book, The Philosophy of Social Evolution, was published by Oxford University Press in 2017.