![Frontiers | Older males whistle better: Age and body size are encoded in the mating calls of a nest-building amphibian (Anura: Leptodactylidae) Frontiers | Older males whistle better: Age and body size are encoded in the mating calls of a nest-building amphibian (Anura: Leptodactylidae)](https://www.frontiersin.org/files/Articles/1020613/fevo-10-1020613-HTML-r1/image_m/fevo-10-1020613-t001.jpg)
Frontiers | Older males whistle better: Age and body size are encoded in the mating calls of a nest-building amphibian (Anura: Leptodactylidae)
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![Frontiers | Older males whistle better: Age and body size are encoded in the mating calls of a nest-building amphibian (Anura: Leptodactylidae) Frontiers | Older males whistle better: Age and body size are encoded in the mating calls of a nest-building amphibian (Anura: Leptodactylidae)](https://www.frontiersin.org/files/Articles/1020613/fevo-10-1020613-HTML-r1/image_m/fevo-10-1020613-t002.jpg)
Frontiers | Older males whistle better: Age and body size are encoded in the mating calls of a nest-building amphibian (Anura: Leptodactylidae)
![Frontiers | Older males whistle better: Age and body size are encoded in the mating calls of a nest-building amphibian (Anura: Leptodactylidae) Frontiers | Older males whistle better: Age and body size are encoded in the mating calls of a nest-building amphibian (Anura: Leptodactylidae)](https://www.frontiersin.org/files/Articles/1020613/fevo-10-1020613-HTML-r1/image_m/fevo-10-1020613-g001.jpg)
Frontiers | Older males whistle better: Age and body size are encoded in the mating calls of a nest-building amphibian (Anura: Leptodactylidae)
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