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A fossil site in southwest China reveals that complex animals evolved before the Cambrian period even started — pushing the timeline back by millions of years

For more than a century, the Cambrian explosion has served as biology’s big bang: the moment, roughly 538.8 million years ago ...
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Trace Fossils Showcase Creatures Possibly Didn't Get Evolutionary 'Burst' During Cambrian Explosion, Studies Reveal

Many major groups of animals that have become a mainstay in modern times first appeared during the Cambrian Explosion. However, a new study undertaken by a team of researchers claims that though the ...