Image credit: Marianne Collins, Artofact

Explosions 2 - The origin of animal diversity

Monday 16th Mar 2015, 02.30pm

This podcast is part of the The Big Questions series.

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 existed.

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