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Aristotle's lantern in a sea urchin, viewed in lateral section. The mouth of most sea urchins is made up of five calcium carbonate teeth or plates, with a fleshy, tongue-like structure within. The entire chewing organ is known as Aristotle's lantern from Aristotle's description in his History of Animals (translated by D'Arcy Thompson):
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The red sea urchin (Mesocentrotus franciscanus) [1] is a sea urchin found in the northeastern Pacific Ocean from Alaska to Baja California. It lives in shallow waters from the low-tide line to greater than 280 m (920 ft) deep, [ 2 ] and is typically found on rocky shores sheltered from extreme wave action in areas where kelp is available.
On Colors (Greek Περὶ χρωμάτων; Latin De Coloribus) is a treatise attributed to Aristotle [1] but sometimes ascribed to Theophrastus or Strato.The work outlines the theory that all colors (yellow, red, purple, blue, and green) are derived from mixtures of black and white.
These sea urchins have a disc-like body, more or less bulging, structured by a flexible test, which is nearly unique among sea urchins. Most species can grow quite big and live in deep seas, though some genera contain shallow species (especially Asthenosoma).
Our country's pumpkin-carving history began with a spooky tale. The post The History of Jack-o-Lanterns and How They Became a Halloween Tradition appeared first on Reader's Digest.
The green sea urchin occurs in tropical waters in the western Atlantic Ocean. The subspecies occupy different geographical areas. L. v. variegatus occurs in the Caribbean Sea, southern Florida, the Yucatán peninsula and northern Brazil but not Barbados while L. v. carolinus is found from North Carolina southwards to the Caribbean Sea and Gulf of Mexico.
HBO and DC Studios announced that Aaron Pierre and Kyle Chandler will lead the upcoming "Lanterns" TV show — the first major "Green Lantern" project since Ryan Reynolds' widely panned 2011 movie.