Earth May Have Hosted Complex Life Much Earlier Than We Thought

The evolution of complex life is still one of the greatest mysteries of science.

Dom Galeon and Kristin Houser, Futurism

Some 3.8 billion years ago, the first lifeforms emerged on Earth, and they were single-celled organisms, such as bacteria. Then, roughly 541 million years ago, complex, multicellular life appeared during an evolutionary event known as the Cambrian Explosion. Much of what we know about this relatively short period in history is gleaned from fossil evidence. Now, the discovery of strange fossils in sedimentary rocks in central India may push this evolutionary moment back by 400 million years.

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