Sparrows change their tune to be heard in noisy cities
Monday, April 2, 2012 - 16:30
in Physics & Chemistry
Sparrows have changed their tune to soar above the increasing cacophony of car horns and engine rumbles. The study compares birdsongs from as far back as 1969 to today. The researchers also detail how San Francisco's streets have grown noisier based on studies from 1974 and 2008.