R. darwinii
Introduction '''''R. darwinii''''' may refer to:* ''Rhea darwinii'', a synonym for ''Rhea pennata'', Darwin's rhea, a flightless bird species* ''Rhinoderma darwinii'', the Darwin's frog, a frog species native to the forest streams of Argentina and Chile
See also * Darwinii (disambiguation)* R. darwinii (disambiguation)