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Chavín de Huántar

(Encyclopedia) Chavín de HuántarChavín de Huántarchävēnˈ dā wänˈtär [key], archaeological site in the northeastern highlands of Peru, near the headwaters of the Marañon River. It flourished between c…

Ciliophora

(Encyclopedia) CiliophoraCiliophorasĭlˌē-ŏfˈərə [key], phylum in the kingdom Protista consisting of the ciliates, or ciliophores, complex freshwater or saltwater protozoans that swim by the…

sea slug

(Encyclopedia) sea slug, name for a marine gastropod mollusk that lacks a shell as an adult and is usually brightly colored. Sea slugs, or nudibranchs, are distributed throughout the world, with the…

sea snake

(Encyclopedia) sea snake, name for any of the venomous marine snakes of the family Hydrophidae, found in tropical waters of the Indian and Pacific oceans. The sea snake's body is flattened laterally…

paddlefish

(Encyclopedia) paddlefish, large freshwater fish, Polyodon spathula, of the Mississippi valley, also called spoonbill or duckbill and named for its flattened, paddle-shaped snout. The largest…

solenodon

(Encyclopedia) solenodonsolenodonsōlēˈnədŏn [key], venomous insectivorous mammal, genus Solenodon, found in the West Indies. Related to moles and shrews, the solenodon resembles a rat with an…

mimicry

(Encyclopedia) CE5 Mimicry in butterflies mimicry, in biology, the advantageous resemblance of one species to another, often unrelated, species or to a feature of its own environment. (When the…

Margaret I

(Encyclopedia) Margaret I, 1353–1412, queen of Denmark, Norway, and Sweden, daughter of Waldemar IV of Denmark. She was married (1363) to King Haakon VI of Norway, son of Magnus VII of Norway and…

man-o'-war bird

(Encyclopedia) man-o'-war bird or frigate-bird, most aerial of the water birds, found in the tropic seas. The man-o'-war bird's wingspread (71&fslsh;2 ft/228.5 cm) is the largest in proportion to…

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…