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goldfish

(Encyclopedia)goldfish, freshwater fish, genus Carassius, of the family Cyprinidae, popular in aquariums and ponds. Native to China, it was first domesticated centuries ago from the wild form, an olive-colored carp...

hydra, in zoology

(Encyclopedia)hydra hīˈdrə [key], common name for freshwater organisms in the phylum Cnidaria, which includes jellyfish, sea anemones, and corals. Hydras are widely distributed in lakes, ponds, and sluggish stre...

Isle Royale National Park

(Encyclopedia)Isle Royale National Park roiˈəl [key], 571,790 acres (231,575 hectares), comprising about 200 islands, in Lake Superior, NW Mich.; est. 1940. Isle Royale, 210 sq mi (544 sq km), is the largest isla...

isopleth

(Encyclopedia)isopleth īˈsəplĕthˌ [key], line drawn on a map through all points of equal value of some measurable quantity. In many meteorologic, oceanographic, or geologic studies some physical or chemical pr...

darter, bird

(Encyclopedia)darter or anhinga ănhĭngˈgə [key], common name for a very slender, black water bird very closely related to the cormorant. It frequents the wooded borders of freshwater lakes, rivers, and swamps i...

Ticonderoga

(Encyclopedia)Ticonderoga tīˌkŏndərōˈgə [key], resort village (1990 pop. 2,770), Essex co., NE N.Y., on a neck of land between lakes George and Champlain; settled in the 17th cent., inc. 1889. At Ticonderoga...

Michigan, Lake

(Encyclopedia)Michigan, Lake, 22,178 sq mi (57,441 sq km), 307 mi (494 km) long and 30 to 120 mi (48–193 km) wide, bordered by Mich., Ind., Ill., and Wis.; third largest of the Great Lakes and the only one entire...

Patagonia

(Encyclopedia)Patagonia pätägōˈnyä [key], region, c.300,000 sq mi (777,000 sq km), primarily in S Argentina, S of the Río Colorado and E of the Andes, but including extreme SE Chile and N Tierra del Fuego. Pa...

Saint Paul

(Encyclopedia)Saint Paul, city (1990 pop. 272,235), state capital and seat of Ramsey co., E Minn., on bluffs along the Mississippi River, contiguous with Minneapolis, forming the Twin Cities metropolitan area; inc....

Sakha Republic

(Encyclopedia)Sakha Republic yəko͞oˈshēə [key], constituent republic (1995 pop. 1,035,000), c.1,200,000 sq mi (3,108,000 sq km), NE Siberian Russia. Yakutsk is the capital. The Sakha Republic is bounded in the...