Why do we laugh? Are we the only species with a sense of humour? Why don’t we all find the same things funny? What on earth is a funny bone anyway, and why do we call it that? The AQUILA team is on hand to answer all your questions (and have a giggle at the same time) in our Science of Humour issue. We’ll take a look at laughing animals, find out how humans develop a sense of humour and explore the exciting world of improvisation with a real-life stand-up comic. All that, and Harvey looks at the (frankly massive) prank potential of invisibility cloaks.