Booker Elementary School students measure oysters and calculate how much they’ve grown at Joint Base Langley-Eustis, Virginia, June 3, 2019. The baby oysters, also known as spats, brought to JBLE in October 2018 have grown from an average of seven millimeters to an average of 35 millimeters. (U.S. Air Force photo by Senior Airman Anthony Nin Leclerec)