A recent study found that humans can smell fear in the sweat of their counterpart. This ability explains why people watching a horror film at the cinema get more scared collectively, and why crowds can erupt in mass panic.

Have you ever heard of ‘terms of venery’? These are terms which describe groups of animals. If you want to talk about a group of geese they are a ‘gaggle’ and hippopotami come in a ‘bloat’. And if you’re unlucky enough to encounter a group of mosquitoes, you should call them ‘a scourge’ (as you run swiftly away!). Perhaps crows have the strangest term – they are called a ‘murder’.

In Return of the Jedi, Lando’s co-pilot, Nien Nunb, is speaking an alien language – or is he? Actually, the actor who voiced him, used a mix of the real African languages Kikuyu and Haya!