'Snowball Earth' melting led to 1st animals on Earth: Study
Australia-based scientists have confirmed that melting of 'Snowball Earth' about 650 million years ago led to the appearance of first complex lifeforms on Earth. As Earth's snow melted, torrents of nutrients were released into the oceans, creating the perfect conditions for the spread of algae. This provided the burst of energy required for the evolution of complex ecosystems, researchers said.