Sanskrit nāraṅga travelled through Persian and Arabic nāranj; Spanish still says naranja. In Italian and French the initial n vanished, probably swallowed by the article, the same slip that turned 'a napron' into 'an apron' in English. And the fruit came first: English only started using 'orange' as a colour word in the 16th century.
In Kuşköy, a mountain village in northern Turkey, people talk across valleys by whistling Turkish. A 2015 study showed that whistled Turkish draws on both hemispheres fairly evenly, whereas spoken Turkish relies mostly on the left. The physical form of the signal, it turns out, matters to the brain.
Speech has no gaps between words. In 1996, researchers played 8-month-old babies a continuous stream of made-up syllables for just two minutes. The infants picked out the 'words' by tracking which syllables tend to follow one another. That's probability calculation, done without a calculator or any visible effort.