About The Author
THOMAS HALLIDAY is a palaeontologist and evolutionary biologist. He holds a Leverhulme Early Career Fellowship at the University of Birmingham, and is a Scientific Associate of the Natural History Museum. His research combines theoretical and real data to investigate long-term patterns in the fossil record, particularly in mammals. Thomas was the winner of the Linnean Society's John C. Marsden Medal in 2016 and the Hugh Miller Writing Competition in 2018.