I am a vertebrate palaeontologist, ornithologist, and evolutionary biologist in the Department of Earth Sciences at the University of Cambridge, interested in the origins of modern biodiversity. I spend much of my time in the field observing and photographing wildlife and collecting fossils. My research examines the evolutionary relationships of major groups of organisms, and the impact of major events in Earth history (such as the Chicxulub asteroid impact) on the history of life.