Listen to Dutch chimpanzees speaking in Scottish accent: ‘first evidence’ of animals modifying languageA study found that the chimps, moved from Scandinavia to Edinburgh Zoo, altered the grunt they used for the word “apples” to sound more like their counterparts. The Dutch chimps initially used a squeaky high-pitched grunt, with the Scottish chimps using a lower one. Within three years, the Dutch group had dropped down to lower tones.