While wild horses in the right environment can blend beautifully into their background, the better to fool predators, it’s another story with domestic horses – especially those pressed into service in battle. The Camoupedia is a blog dedicated to the art of becoming invisible. Fascinatingly, it includes three posts about the camouflaging of horses in World War One – one about the French painting their horses khaki, and another about US soldiers in Mexico in 1915 grubbing up their favourite grey, while British troops in East Africa liked to transform their mules and ponies into zebras. And to flip the concept around, here are US snipers using a papier mâché “dead horse” to take a pop at the Hun.