How a single deadly element transformed Earth's biological history
For billions of years, life on Earth was nothing more than simple cells drifting in water. This video explores how a specific, lethal element acted as a catalyst, shifting life from a state of stagnation to the complexity we see today.
Earth has hosted life for at least 3.7 billion years, yet for the vast majority of that timeline, biological activity remained incredibly basic. Life consisted primarily of simple cells moving through aquatic environments. It was only within the last few hundred million years that life began to evolve into more complex and interesting forms. This transition may have been made possible by the presence of an element that is simultaneously deadly and life-giving.
Source: The Deadly Chemistry That Made Life Interesting
