They collected some of the oysters that were left behind, checked on their health, and removed offspring that didn't belong in the study.

VOA: standard.2010.07.13

He says particular care must be given to the thousands of children who were left behind, many of whom have become traumatized by the events.

VOA: standard.2009.09.25

Left behind on the moon were the footprints of Armstrong and Aldrin, an American flag and scientific equipment.

VOA: special.2009.07.15

Down he came,very slowly. Soon,both men were busy placing experiments to be left behind on the moon.

VOA: special.2009.07.15

They were just a few of the things the astronauts left behind.

VOA: special.2010.03.02