Cowtail stingrays also preferentially form mixed - species groups with reticulate whiprays ( Himantura uarnak ) , likely .
The whiprays are better able to detect predators due to reticulate whiprays ' longer tails .
Cowtail stingrays also preferentially form mixed - species groups with reticulate whiprays ( Himantura uarnak ) , likely because the whiprays are better able to detect predators due to their longer tails .