(Encore episode.) In 2006, while hiking around the Root Glacier in Alaska, glaciologist
Tim Bartholomaus encountered something strange and unexpected on the ice — dozens of fuzzy, green moss balls. It turns out, other glaciologists had come across glacial moss balls before and lovingly called them "glacier mice."
NPR science correspondent
Nell Greenfieldboyce and Short Wave reporter
Emily Kwong talk about glacial moss balls and delve into the mystery of how they seem to move as a herd.
Read more of Nell's reporting on glacier mice
here.
Email the show at
shortwave@npr.org.
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