Pheidole - Alex Wild Photography
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Pheidole obscurithorax stays ahead of the competition using group retrieval of food items (in this case, a scavenged wasp carcass).  Working together the ants can usually get the bounty home before a more aggressive species usurps their find. Pheidole obscurithorax is a regular competitor of Solenopsis fire ants, both in its native Argentina and along the U.S. gulf coast where both species have been introduced.

Entre Rios, Argentina

Pheidole obscurithorax stays ahead of the competition using group retrieval of food items (in this case, a scavenged wasp carcass). Working together the ants can usually get the bounty home before a more aggressive species usurps their find. Pheidole obscurithorax is a regular competitor of Solenopsis fire ants, both in its native Argentina and along the U.S. gulf coast where both species have been introduced. Entre Rios, Argentina

pheidole obscurithoraxpheidolemyrmicinaeforagingrecruitmentrecruitgroup foraginggroup prey retrievalcentral placeformicidaehymenopterainsectspreycarryminor workerscooperationtogetherworking