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In How It Works 167, discover how changes in DNA can lead to freaky mutations but also shape the evolution of a species, see the sound barrier-breaking vehicles that have accelerated to hypersonic speeds and beyond, why black box flight recorders are virtually indestructible, how skunks create their stinky odours, why black truffles are so expensive, who invented chess? – and much more.

For more science and technology articles, pick up the latest copy of How It Works from all good retailers or from our website now. If you have a tablet or smartphone, you can also download the digital version onto your iOS or Android device. To make sure you never miss an issue of How It Works magazine, subscribe today!