From Single Cell to Species Survival | Extra Long Documentary

Over nearly four billion years, life has evolved from a single cell into the vast diversity seen today, with approximately 1.8 million known species and possibly millions more undiscovered. Despite facing five mass extinction events, including one around 250 million years ago that decimated nearly all life, evolution persisted, aided by crucial innovations: the egg and sexual reproduction. These enduring adaptations have ensured the resilience and continuation of life on Earth.

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