300 dpi: (d1492-1.jpg)
640 pixels wide: (d1492-1.jpg)
 Image Number D1492-1 |
In studies to determine whether fire ants dominate other ants in South America, worker ants of Crematogaster and Pheidole, two competitors of the red imported fire ant, try to dominate a tuna bait.
Photo by Sonia Cabrera.
