Invasive Ants Turn Bumble Bee Foraging Into Costly Battles

Bumble bees may overpower invasive Argentine ants in one-on-one fights, but those victories come at a hidden cost. When bumble bees encounter invasive Argentine ants at feeding sites, they may defeat them in direct clashes but still return to the colony with less nectar. A single victory does not necessarily benefit the hive if it [...]