english: We discovered that they can go through three-millimeter gaps, the height of two pennies, two stacked pennies, and when they do this, they can actually run through those confined spaces at high speeds, although you never see it.
non_english: Zistili sme, že vedia prejsť cez trojmilimetrové štrbiny – výška dvoch mincí na sebe. A keď to robia, vedia v podstate prebehnúť cez tento stiesnený priestor vysokou rýchlosťou, aj keď to nikdy neuvidíte.