What timeframe challenges the perception of evolution as slow for urban *I. lesueurii* populations?

Within a single human lifespan

A key finding discussed regarding contemporary ecology is that certain populations of *I. lesueurii* are adapting to human-dominated environments at an unexpectedly rapid pace. This acceleration means that evolutionary shifts, which traditionally require millennia to become noticeable on a macroevolutionary scale, are now observed to occur quickly enough to be documented or visible within the duration of a single human lifespan. This challenges the long-held scientific perception that evolutionary processes are inherently slow and almost imperceptible over short durations.