How a handful of prehistoric geniuses launched humanity’s technological revolution
For the first few million years of human evolution, technologies changed slowly. Some three million years ago, our ancestors were making chipped stone flakes and crude choppers. Two million years ago, hand-axes. A million years ago, primitive humans sometimes used fire, but with difficulty. Then, 500,000 years ago, technological change accelerated, as spearpoints, firemaking, axes, beads and bows
Marine life is fleeing the equator to cooler waters. History tells us this could trigger a mass extinction event
The tropical water at the equator is renowned for having the richest diversity of marine life on Earth, with vibrant coral reefs and large aggregations of tunas, sea turtles, manta rays and whale sharks. The number of marine species naturally tapers off as you head towards the poles. Ecologists have assumed this global pattern has remained stable over recent centuries — until now. Our recent study
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War games shed light on real-world strategies
