Often, the evolution of this kind of camouflage is detectable on a shorter timescale too - the populations of dark-coloured peppered moths grew in England, for example, as sooty pollution increased in the 19th century during the Industrial Revolution.

通常来说，在较短一段时间内也能观察到伪装的进化发展——例如，19世纪工业革命期间，烟尘污染增加时，英国深色胡椒蛾的数量有所增加。