Fire ants may have taken over Texas, but the invasive population is not harmonious. Here, workers have pinned down an ant from a rival colony, who defends herself with her stinger. Bastrop State Park, Texas, USA.
As neighboring Tetramorium pavement ant colonies grow into each others' territories, they test their strength in extended battles. Champaign, Illinois, USA
In ant battles, large size is not as advantageous as large numbers. This Pheidole soldier ant proved no match for the hordes of Tetramorium sericeiventre that zealously defend their territory against any incursion. St. Lucia, KZN, South Africa
