Have scientists finally solved the mystery of how complex life first appeared on Earth?

by Luke Higgins

A global ice age known as “Snowball Earth” triggered the development of complex life 650 million years ago, new evidence suggests.

Scientists believe glaciers covered the planet and pounded entire mountain ranges to powder, releasing life-sustaining nutrients.

When the snow and ice finally melted, the nutrients were washed into the oceans to fuel the rapid development of algae.

The primitive photosynthesising plant organisms marked the transition from aeons of bacterial life to complex ecology and multitudes of animal species.

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