They took pictures of displaying peacocks to count the number of ocelli, and captured them to measure tail length. |
The ocelli, or eye spots, may reduce damage from fin-biting predators by mimicking the head. |
The discrepancy is most obvious with regards to the dorsal head regions, which give rise to the lateral and median ocelli. |
Besides functioning as an identification feature, the ocelli also have anti-predator functions. |
The ocelli on the spinous dorsal fin of males are metallic blue, surrounded by a golden ring. |
Outside the ocelli run numerous pale yellow longitudinal stripes on a nearly black background. |