Dr Allison Daley describes what fossils can tell us about the
Cambrian Explosion; a period of time 540 million years ago, where
there was a vast increase in the different types of animals that
'Will my bacon sandwich kill me?', 'Is vaping better than smoking?', 'How do you become an astronaut?' - just some of the Big Questions we ask some of the brightest minds behind Oxford science. Join us in each podcast as we explore a different area of science.