Columbia Encyclopedia

Search results

500 results found

snakehead

(Encyclopedia)snakehead, common name for members of the family Channidae, hardy freshwater fish native to S and E Asia and tropical Africa, where they are a popular food fish. Snakeheads are elongated fishes with l...

shrike

(Encyclopedia)shrike or butcher bird, predatory songbird found in most parts of the world except Australia and South America. The plumage of the European and North American species is mostly gray, black, and white;...

periwinkle, in zoology

(Encyclopedia)periwinkle, any of a group of marine gastropod mollusks having conical, spiral shells. Periwinkles feed on algae and seaweed. They are found at the water's edge; out of water, they resist drying by cl...

dogwood

(Encyclopedia)dogwood or cornel kôrˈnəl [key], shrub or tree of the genus Cornus, chiefly of north temperate and tropical mountain regions, characteristically having an inconspicuous flower surrounded by large, ...

moa

(Encyclopedia)moa mōˈə [key] [Maori], common name for an extinct flightless bird of New Zealand related to the kiwi, the emu, the cassowary, and the ostrich. The various species ranged in size from that of a tur...

bee fly

(Encyclopedia)bee fly, name for the small- to medium-sized flies of the family Bombyliidae, many of which resemble bees in appearance and behavior. This mimicry provides bee flies with some measure of protection ag...

purslane

(Encyclopedia)CE5 Purslane, Portulaca oleraceae purslane, common name for some plants of the Portulaceae, a family of herbs and a few small shrubs, chiefly of the Americas. The portulacas or purslanes (genus Po...

salmon, in zoology

(Encyclopedia)salmon sămˈən [key], member of the Salmonidae, a family of marine fish that spawn in freshwater, including the salmons, the trouts, and the chars (subfamily Salmoninae), the whitefish and the cisco...

pink

(Encyclopedia)CE5 Deptford pink, Dianthus armeria pink, common name for some members of the Caryophyllaceae, a family of small herbs found chiefly in north temperate zones (especially the Mediterranean area) bu...

alpine plants

(Encyclopedia)alpine plants, high-altitude representatives of various flowering plants (chiefly perennials) that because of their dwarf habit, profuse blooming, and the preference of many for shady places are culti...

Browse by Subject