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cichlid

(Encyclopedia)cichlid sĭkˈlĭd [key], common name for members of the family Cichlidae, more that 1,600 species of spiny-finned freshwater fishes of moderate or small size, native to Africa, S Asia, Mexico, and Ce...

Darwinism

(Encyclopedia)Darwinism, concept of evolution developed in the mid-19th cent. by Charles Robert Darwin. Darwin's meticulously documented observations led him to question the then current belief in special creation ...

evening primrose

(Encyclopedia)CE5 Evening primrose, Oenothera biennis evening primrose, common name for the Onagraceae, a family of plants of worldwide distribution, most species of which grow as herbs in the temperate New Wor...

St.-John's-wort

(Encyclopedia)St.-John's-wort, any species of the large and widespread herbaceous or shrubby genus Hypericum of the family Hypericaceae (St.-John's-wort family), usually found in moist, open places and often having...

bur marigold

(Encyclopedia)bur marigold or sticktight, common name for any species of Bidens, a genus of chiefly weedy North American plants of the family Asteraceae (aster family) with two-pronged burlike fruits (achenes) that...

gecko

(Encyclopedia)gecko gĕkˈō [key], small or medium-sized lizard of the family Gekkonidae. Some 1,500 species are distributed throughout the warm regions of the world, mostly in the Old World. Despite folklore to t...

sea cucumber

(Encyclopedia)sea cucumber, any of the flexible, elongated echinoderms belonging to the class Holothuroidea. Although sea cucumbers have the basic echinoderm radial symmetry (see Echinodermata), they do not have ar...

milkweed

(Encyclopedia)milkweed, common name for members of the Asclepiadaceae, a family of mostly perennial herbs and shrubs characterized by milky sap, a tuft of silky hairs attached to the seed (for wind distribution), a...

violet

(Encyclopedia)violet, common name for some members of the Violaceae, a family of chiefly perennial herbs (and sometimes shrubs, small trees, or climbers) found on all continents. Violets, including the genus Viola ...

subspecies

(Encyclopedia)subspecies, also called race, a genetically distinct geographical subunit of a species. See also classification. ...