Search Results for: Frozen crustaceans
to be certain, the prevailing view among paleontologists is that the scales, claws, beaks, and some protective armor of dinosaurs most likely were composed of a type of keratin. in crossopterygian fish, the outer layer of cosmoid scales was keratin. among the invertebrates , arthropods such as crustaceans
often have parts of their armor or exoskeleton made of keratin, sometimes in combination with chitin , which is a hard, semitransparent polysaccharide that is the main component of the shells of crustaceans, such as crabs , lobsters , and shrimp . in arthropods, however, chitin is frequently modified...
https://www.newworldencyclopedia.org/entry/Keratin
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