jerrywu wrote:
Dolphins lack vocal cords,nevertheless creating sounds: a complicated system of whistles, Squeaks, moans, trills, and clicks are produced by sphincter muscles inside the blowhole.
A: nevertheless creating sounds: a complicated system of whistles, squeaks, moans, trills, and clicks are produced by
B: nevertheless creating sounds: they produce a complicated system of whistles, squeaks, moans, trills, and clicks with
C: but they do create sounds, producing a complicated system of whistles,
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