Having unequal or asymmetrical muscles, especially referring to birds with unbalanced vocal muscles in their voice box.
From Greek 'anisos' (unequal) + 'myodes' (muscle-like). This variant form appears in 19th-century ornithological literature as an alternative to 'anisomyodian.'
This odd muscular asymmetry in birds is actually nature's clever design for producing the amazing diversity of bird songs we hear in forests and gardens around the world.
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