Nature Podcast: firefly light and ultrasonic frog chorus

From www.nature.com/nature:

Each week Nature publishes a free audio show, presented and produced by Chris Smith and Anna Lacey at the University of Cambridge, UK, and sponsored by Bio-Rad.

Each show features highlights from news and articles published in Nature, including interviews with the people behind the science with in-depth commentary and analysis from journalists covering the research.

On this week's Nature Podcast (published March 16) see the firefly light, hear the ultrasonic frog chorus, inhale super-solid helium at the American Physics Society meeting, discover colour-coded bacteria, and how DNA could make the electronic circuits of the future.