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dogfish

(Encyclopedia)dogfish, name for a number of small sharks of several different families. Best known are the spiny dogfishes (family Squalidae) and the smooth dogfishes (family Triakidae). Spiny dogfishes have two sp...

scurvy

(Encyclopedia)scurvy, deficiency disorder resulting from a lack of vitamin C (ascorbic acid) in the diet. Scurvy does not occur in most animals because they can synthesize their own vitamin C, but humans, other pri...

octopus

(Encyclopedia)octopus, cephalopod mollusk having no shell, eight muscular arms or tentacles, a pouch-shaped body, and two large, highly developed eyes. The prey (crabs, lobsters, and other shellfish) is seized by t...

gnu

(Encyclopedia)gnu wĭlˈdəbēstˌ [key], large African antelope, genus Connochaetes. Its heavy head and humped shoulders resemble those of a buffalo, while the compact hindquarters are like those of a horse. The g...

Salish

(Encyclopedia)Salish, indigenous people of North America, also known as the Flathead, who in the early 19th cent. inhabited the Bitterroot River valley of W Montana. Their language belongs to the Salishan branch of...

Rift Valley fever

(Encyclopedia)Rift Valley fever, acute viral disease that affects domestic livestock and can be transmitted to humans. The disease is most common in E and S Africa, but also occurs widely in sub-Saharan Africa and ...

KwaZulu-Natal

(Encyclopedia)KwaZulu-Natal kwäzo͞oˈlo͞o-nätälˈ [key], province (2011 pop. 10,267,300), 36,433 sq mi (94,361 sq km), E South Africa, on the Indian Ocean. Formerly Natal province, in the post-apartheid consti...

Herschel

(Encyclopedia)Herschel hûrˈshəl [key], family of distinguished English astronomers. Sir William Herschel,Sir William Herschel, 1738–1822, born Friedrich Wilhelm Herschel, was a great pioneer in astronomy. Bor...

Western Sahara

(Encyclopedia)CE5 Western Sahara, territory (2015 est. pop. 526,000), 102,703 sq mi (266,000 sq km), NW Africa, occupied by Morocco. It borders on the Atlantic Ocean in the west, on Morocco in the north, on Alge...

Kickapoo

(Encyclopedia)Kickapoo kĭkˈəpo͞o [key], Native North Americans whose language belongs to the Algonquian branch of the Algonquian-Wakashan linguistic stock (see Native American languages) and who in the late 17t...