00:00A new study shows evolution of complex life may have happened more than once.
00:05Complex life on Earth may have been completely wiped out in the distant past,
00:09before re-emerging and developing into the natural world we know today.
00:12That's according to controversial new research which found indications of organisms 1.5 billion years earlier than previously thought.
00:20This study brings many answers but also many questions about the origin of life.
00:26From studying fossils in Gabon, Africa, the team found high levels of essential phosphorus and oxygen.
00:31Moments in the Earth's history where a sudden cooling led to the widespread formation of glaciers,
00:36created ideal conditions for life to emerge at least twice.
00:40The ecosystem changed completely and the life became more and more complex.
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