Others may struggle to collect food surplus from stores on a daily basis, especially as often our stores closed late at night.

Potatoes provided a reliable food surplus, which enabled longer and more sustained military campaigns.

They had little need for foraging and grew to an advanced civilization due to food surplus.

Repeated experimental exposure of birds to a food surplus significantly increases the rate at which they impale freshly caught prey.

This allowed the region, which previously had a food shortage, to have food surplus, allowing the military to be supported.