Tim Dean is a Sydney-based philosopher and science writer. He is the author of How We Became Human, a book about how our evolved moral minds are out of step with the modern world. He has a Doctorate in philosophy from the University of New South Wales on the evolution of morality and has expertise in ethics, philosophy of biology and critical thinking. He is also a writer and editor with over two decades of experience in the media. He has worked as the Science & Technology Editor at The Conversation, and edited magazines including Cosmos and Australian Life Scientist. Tim is an Honorary Associate in the Philosophy department at the University of Sydney and runs philosophy and ethics workshops for business, the general public and for schools across Australia.