Todd is a consultant herpetologist with many years of experience working on conservation and research projects in the UK, India and Central America. His specialist research has included tropical rainforest ecology and population dynamics in India, Costa Rica and Guatemala. He is a former editor of the BHS Herpetological Bulletin, and managed a research station in Costa Rica for several years up until 2012. He has worked on a wide range of commercial infrastructure projects in the UK and Central Asia, leading mitigation programmes for large ecological consultancies. For CGO Ecology, Todd has worked on large-scale survey projects, managed a field team, and acted as an Ecological Clerk of Works. He has particular experience working on road and rail projects.