This kind of leap-tailed gecko has red eyes, tiny horns, and speckled skin. All of these things help the gecko blend into the forest where it lives. This keeps it safe from predators.
Dr Full and his colleagues have since identified similar behaviour in other animals with hooklike toes that are good at escaping pursuit: geckos, for example.
This ability to vocalize likely arose independently, multiple times, hundreds of millions of years ago-in frogs, mammals, geckos, and birds and crocodilians.