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bonobo

(Encyclopedia)bonobo, smaller of two species of chimpanzee, genus Pan. Whereas the common chimpanzee, P. troglodytes, lives in forests across most of equatorial Africa, the bonobo, P. paniscus (sometimes called the...

Adjarian Autonomous Republic

(Encyclopedia)Adjarian Autonomous Republic or Ajarian Autonomous Republic əjärˌĭstänˈ, əjärˈĭstănˌ [key], autonomous region, c.1,160 sq mi (3,000 sq km), SW Georgia...

Valentinus

(Encyclopedia)Valentinus văləntēˈnəs [key], fl. c.135–c.160, founder of the Valentinians, the most celebrated of the Gnostic sects (see Gnosticism) of the 2d cent. The little that is known of his life is fou...

vampire bat

(Encyclopedia)vampire bat, name for the blood-drinking bats of the family Desmodontidae, found in the New World tropics. Vampire bats feed exclusively on the blood of living animals and are thus the only true paras...

Somerset, county, England

(Encyclopedia)Somerset, county (1991 pop. 459,100), 1,333 sq mi (3,453 sq km), SW England, on the Bristol Channel. The county seat is Taunton. The terrain is generally low and flat in the center (the location of th...

South Island

(Encyclopedia)South Island or Te Waipounamu [Maori,=the waters of greenstone] (1996 pop. 900,114), 58,093 sq mi (150,461 sq km), New Zealand. It is the larger but less populous of the two principal islands of the c...

Shanxi

(Encyclopedia)Shanxi or Shansi shänˈshēˈ [key], province (2010 pop. 35,712,111), c.60,000 sq mi (155,400 sq km), NE China. The capital is Taiyuan. It is bounded on the west and the south by the Huang He (Yellow...

Rhineland-Palatinate

(Encyclopedia)Rhineland-Palatinate rīnˈlănd pəlătˈĭnĭtˌ [key], Ger. Rheinland-Pfalz, state (1994 pop. 3,926,000), 7,658 sq mi (19,834 sq km), W Germany. Mainz is the capital. The state was formed in 1946 b...

Rhône, river, Switzerland and France

(Encyclopedia)Rhône, Lat. Rhodanus, river, 505 mi (813 km) long, rising in the Rhône glacier, NE Valais, Switzerland. It flows west through a narrow, flat valley that separates the Bernese Alps from the Pennine A...

rhythm, biological

(Encyclopedia)rhythm, biological, or biorhythm, cyclic pattern of physiological changes or changes in activity in living organisms, most often synchronized with daily, monthly, or annual cyclical changes in the env...