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CrowdScience listener Paul from Uganda is fascinated by military uniforms. The outfits of so many different armies, from different countries all around the world, often look remarkably similar – mottled shades of olive green camouflage.

Where did it come from? How does it work as camouflage? And what inspired it?

Alex Lathbridge delves into the science, the history and the future of camouflage.