Miocene: The World Rewired—Tectonics, Climate, and the Rise of Modern Life

From 23 to 5 million years ago, the Miocene rewired Earth. Himalayan–Tibetan uplift reshaped climate and monsoons; Africa–Arabia sutured to Eurasia, enabling massive faunal exchanges; Antarctica's isolation launched the circumpolar current and long-term cooling. Global drying and cooling spurred grasslands, drove mammal diversification, and fostered kelp forests, while creating the habitat mosaic that set the stage for human origins in East Africa. This episode ties deep Earth processes to the modern biosphere we inhabit today.

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