It's friday at the end of the semester.
— Tim Bartholomaus (@TimBartholomaus) May 15, 2020
That means it's time to ponder one of the great, enduring mysteries of cryospheric science and ecology: What controls the herd-like, coordinated, motion of glacier moss balls?
Just published: https://t.co/tHPJbjIlLv pic.twitter.com/m5ZzD9GTa0