Ta-da! Our fifth special episode with Cristina Quinn and Alison Bruzek of Trace Elements is here. Let us know what you enjoyed about their series and what surprised you in the comment section below. In just five episodes they’ve covered the science of feeling no fear, illusions with robots, bio-hacking, a mystery at a lake, and this time…
Birds of a feather may flock together — but it turns out birds that live in the city sing at higher frequencies, louder, and more often than their rural friends to outmatch the noise pollution of cars and people. The din of city life is creating new divisions between bird species. Researchers like Elizabeth Derryberry are finding those high-pitched tenors of the bird world aren’t quite as attractive to mates as the lower Barry Whites of the country.
Elizabeth Derryberry, Tulane University
David Luther, George Mason University