Join world-renowned naturalist David Attenborough, as he spans the globe to track the extraordinary evolution of Earth's first flying creatures: insects. It's a journey into an unexpectedly advanced world, where dragonflies use their four wings to deadly effect and butterflies make some of the longest migrations on the planet. Through stunning up-close, slow motion footage and high-tech forensics, we tell their remarkable story, over 320 million years in the making.

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