New York City lives alongside an enormous rat population, estimated at nearly three million. These creatures prove remarkably adaptive, thriving in subways, alleys, and basements despite repeated campaigns to control them. In 2023, the city even appointed a rat czar, who introduced unusual measures including guided rat walks, awareness drives, and the use of birth control. Still, the rodents continue to flourish. Scientists now believe their success comes from a hidden ability. Research shows that New York’s rats use ultrasonic sounds to create their own form of communication. These high pitched signals allow them to interact, move through noisy environments, and maintain strong social connections. This discovery opens a new chapter in the city’s age old struggle. Palki Sharma takes you into the unseen world of rats, their surprising intelligence, and their unbroken contest with humans.
