91热爆

A dig in China鈥檚 Hubei province has revealed a huge number of fossils relating to the Cambrian Explosion period; shedding light on the era when life on earth began evolving into forms we recognise today. Professor Allison Daley is an expert in the era.

(IMAGE: A fossil Daihua sanqiong fossil CREDIT: Yang Zhao, Yunnan University)