To better hear a male’s mating call, some female frogs have noise-cancelling lungs, which resonate at frequencies that filter out the sounds of other species Source: https://www.newscientist.com/article/2270131-some-frogs-have-noise-cancelling-lungs-to-dampen-other-species-calls/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…