Colorful Display of Male Indian Bullfrogs During Courtship
Male Indian bullfrogs display a dramatic transformation during the mating season, changing from their usual dull colors to a vibrant yellow with striking blue vocal sacs. This change is essential for attracting females and outcompeting other males.
The males gather in water bodies and use their vocal sacs to produce loud, resonant calls. These calls serve as both a way to signal their presence to females and to ward off rivals. The combination of bright coloration and powerful calls indicates their fitness, making them more appealing to potential mates.
Females, in contrast, retain their camouflaged appearance and carefully evaluate the males. They select partners based on the intensity of their colors and the strength of their calls, ensuring that the healthiest and strongest individuals are chosen.