LIZARD SPECIALIST, Principal Scientist: Molecular Ecology Programme, South African National Biodiversity Institute, Cape Town, South Africa, KRYSTAL TOLLEY interviewed on a field trip into the mountains of the Couga basin E. CAPE describes the interaction between all species, the way they are responding to changing environmental conditions caused by climate change and the impact of the extinction of a species on the whole food chain. Some scenes of research in progress up on the mountain showing a nifty ability to catch lizards!