Pheidole - Alex Wild Photography
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Minor workers of Pheidole spininodis (left) and Pheidole bergi lock mandibles in a fight between competing colonies.

Jujuy, Argentina

Minor workers of Pheidole spininodis (left) and Pheidole bergi lock mandibles in a fight between competing colonies. Jujuy, Argentina

Pheidole spininodisPheidole bergimyrmicinaeformicidaeantsfightfightingants fightingmandiblescompetitionecologybehavior