Birds and humans, it turns out, sing by the same rules — in 350 species and 52 languages

A McGill University team compared the songs of more than 350 bird species with human speech and song recorded in 52 languages — and found the same deep patterns everywhere: small steps between notes, steady predictable rhythms, and a habit of stretching the final phrase, like a singer holding the last note. The patterns appear whether a bird learns its song or is born knowing it, suggesting they are built into how voices and ears work, across species. The study, published in Science, is the first to make the comparison at this scale.