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scale, in zoology
(Encyclopedia) scale, in zoology, an outgrowth, either bony or horny, of the skin of an animal. The major component of the scales of fishes is bone, and they are formed directly in the skin membrane…onager
(Encyclopedia) onageronagerŏnˈəjər [key] or Persian wild ass, wild ass of central Asia, Equus hemonius onager. Formerly classified as a separate species, it is one of the several subspecies of Asian…Periodic Table of the Elements: Lead
(Encyclopedia) Periodic Table of the Elements: Lead Atomic Number: 82 Atomic Symbol: Pb Lead Atomic Weight: 207.2 Electron Configuration: 2 · 8 · 18 32 · 18 · 4Kabwe
(Encyclopedia) KabweKabwekäbˈwā [key], formerly Broken Hill, city (1990 pop. 166,519), central Zambia. During the 20th cent. it was an important lead and zinc mining and smelting center. As a result…Lead, city, United States
(Encyclopedia) LeadLeadlēd [key], city (1990 pop. 3,632), Lawrence co., W S.Dak., in the Black Hills; laid out 1876 after the discovery of gold there, inc. 1890. It is the site of the famous…The Journals of Lewis & Clark: February 24, 1806
by Meriwether Lewis and William Clark February 23, 1806February 25, 1806February 24, 1806 Monday February 24th 1806. Our sick are still on the recovery. Shannon & Labuishe…pigment
(Encyclopedia) pigment, substance that imparts color to other materials. In paint, the pigment is a powdered substance which, when mixed in the liquid vehicle, imparts color to a painted surface. The…Terrell
(Encyclopedia) TerrellTerrelltĕrˈəl [key], city (1990 pop. 12,490), Kaufman co., N Tex.; inc. 1883. In a farm area, cattle and horses are raised and there are nurseries; peaches, cotton, and wheat…killer whale
(Encyclopedia) killer whale,&sp;orca, or grampus, a large, rapacious marine mammal of the dolphin family. Historically considered one species, Orcinus orca, killer whales may be classified into…pangolin
(Encyclopedia) pangolinpangolinpăng-gōˈlĭn [key], armored, toothless mammal of tropical Asia and Africa. Pangolins range in length from 3 to 6 ft (90–180 cm) including the long, broad tail. Their…