Sea Urchin Jaws
Sea urchins possess unique jaws which display 5-part symmetry, termed the "Aristotle's lantern". Each unit of the jaw holds a single, perpetually-growing tooth composed of crystalline calcium carbonate.
Read more about this topic: Jaw
Famous quotes containing the words sea, urchin and/or jaws:
“My position is a naturalistic one; I see philosophy not as an a priori propaedeutic or groundwork for science, but as continuous with science. I see philosophy and science as in the same boat—a boat which, to revert to Neurath’s figure as I so often do, we can rebuild only at sea while staying afloat in it. There is no external vantage point, no first philosophy.”
—Willard Van Orman Quine (b. 1908)
“Nutmeg, civet, and sea-parsley serve the plagued groom and bride
Who have brought forth the urchin grief.”
—Dylan Thomas (1914–1953)
“No imperfection in budded mountain,
Valleys breathe, heaven and earth move together,
daisies push inches of yellow air, vegetables tremble,
green atoms shimmer in grassy mandalas,
sheep speckle the mountainside, revolving their jaws with empty eyes,
horses dance in the warm rain,”
—Allen Ginsberg (b. 1926)