BiPiSci – True Grit: Pupa Gilbert / Sand Makers

by Gary Niederhoff on August 19, 2019

Big Picture Science – Sand Makers
click to listen (TRT 4:21)

Click above to listen to part 2 of True Grit, featuring Pupa Gilbert, biophysicist and geobiologist at the University of Wisconsin, Madison, explaining how parrotfish produce sand as a byproduct of their digestion.

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