Scott F quoted Super extra grande by Yoss
Set in a distant future, after the invention of faster-than-light space travel has propelled a …
The only intelligent species in the Galactic Community that considers displaying the teeth to be an expression of friendly intentions is Homo sapiens. Must be because we don't have sixty or seventy canines, like the Laggorus, or a series of flexible chewing plates that bear a distant resemblance to the coronal cilia of our rotifers or the cylindrical millstones of our ancient mills, like the Cetians.
— Super extra grande by Yoss (Page 79)
rotifer, n. Any of a number of minute aquatic organisms of the phylum Rotifera, which have a ring of cilia resembling a wheel.
cilium, n. A short microscopic hairline organelle projecting from a eukaryotic cell.