Some of the earliest complex animals were fossilised in a river delta

The Cambrian animals preserved at the Chengjiang fossil site in China lived in a shallow sea close to a river delta – a changeable environment that might have driven rapid evolution

Some of the earliest complex animals were fossilised in a river delta
The Cambrian animals preserved at the Chengjiang fossil site in China lived in a shallow sea close to a river delta – a changeable environment that might have driven rapid evolution