Animal life may be far older than its most ancient fossils – here’s how we uncovered its hidden history
The question of when animals first evolved is one that has confounded scientists since the time of Charles Darwin. Studying rocks in north Wales in the mid-18th century, Darwin found the sudden first appearance of animal shells and skeletons in layers dating back over 500 million years perplexing. H
⬅ Back home Read full article ➡