Now Haethor had picked up a few words in the common speech of the tribe, (he most often answered to the word for 'banana') but he didn't need to follow the conversation to see what was going on. In fact he saw deeper than any of them. He was not colourblind, but his retina contained more densely packed low-light motion-detecting cells than even Fang and Scar combined. As a result, he could see the vibrations of muscle-nerve tension through people's bodies as clear as day or rather, as clear as a fog surrounding them. The ones who did seem as clear as day were those who were calm and confident. Therefore, like Rifa, he too knew in advance who would win the duels.