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Chinese scientists discovered fossils in Yunnan showing complex life predated the Cambrian explosion.
Chinese scientists discovered well-preserved animal fossils in eastern Yunnan rocks, suggesting complex life existed before the Cambrian explosion.
The study in Science indicates early worm-like creatures with bilateral symmetry and basic organs were present, including deuterostomes.
This supports Darwin's theory that the Cambrian explosion was not sudden but caused by gaps in the fossil record.
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Los científicos chinos descubrieron fósiles en Yunnan que muestran vida compleja anterior a la explosión Cámbrica.