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This week’s show:

Featuring:

Sheril Kirshenbaum on the science of kissing

Image Credit: Dada

Calestuous Juma on transforming agriculture in Africa

Extinct birds that fought with clubbed wings

Manolis Kellis on how fruitflies might help keep us well

The Worldwatch Institute’s Christopher Flavin on the State of the World

Special thanks to this week’s musical contributors:

Wiretree

The Black and White Years

Daniel Webb

The Bright Light Social Hour

One Hundred Flowers

EarthSky 22

Thanks for the great response to EarthSky 22! Tell your friends about the best new science podcast on the Internet - 22 minutes of science and music - direct to you from Austin, Texas. Join producer/host Mike Brennan right here every week for EarthSky 22, brought to you by EarthSky: A Clear Voice for Science.