Frog's Ultrasonic Defense Call Discovered in South America

A groundbreaking study reveals the use of ultrasound by the leaf litter frog for predator deterrence in the Brazilian Atlantic Rainforest.

Researchers in South America have recorded a frog's use of ultrasound for defense against predators, a first in the region.
The leaf litter frog (Haddadus binotatus), endemic to the Brazilian Atlantic Rainforest, emits distress calls at frequencies inaudible to humans but audible to many predators.
The discovery sheds light on amphibian behavior and suggests that other species might also use ultrasonic calls for defense.
Potential predators sensitive to these frequencies include bats, rodents, and small primates.
The study raises questions about the effectiveness of the distress call in deterring predators or attracting their natural enemies.