Browse "Nature & Geography"

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  • Article

    Commodities in Canada

    In commerce, commodities are interchangeable goods or services. Many natural resources in Canada are viewed as commodities. They are a major source of the country’s wealth. Examples of commodities include a barrel of crude oil, an ounce of gold, or a contract to clear snow during the winter. Commodity products often supply the production of other goods or services. Many are widely traded in futures exchanges (see Commodity Trading).

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  • Article

    Common Five-Lined Skink

    The common five-lined skink (Plestiodon fasciatus) is a relatively small lizard native to Eastern North America. With a distribution spanning more than 2.5 million square kilometres, it is the most widely distributed lizard species in Eastern North America. Due to a combination of threats and historical declines, it is listed as a species at risk under the Canadian Species at Risk Act.

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  • Article

    Common Watersnake

    The common watersnake (Nerodia sipedon) is a medium-sized, non-venomous snake native to North America. Within Canada, it is found in the southern portions of Ontario and Quebec. In the US, its range extends south to Florida and west to Colorado. Of the four officially recognized subspecies, two are found in Canada: the Northern watersnake (Nerodia sipedon sipedon) and the Lake Erie watersnake (Nerodia sipedon insularum). (See also Snake Species in Canada.)

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  • Article

    Coot

    The coot is an aquatic bird of the rail family. Eleven species occur worldwide; only the American coot (Fulica americana) is found in North America.

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    Copper

    Copper (Cu) is a malleable, ductile, reddish metal that melts at 1083°C. Copper has both a high electric and thermal conductivity. Only silver is a better thermal and electrical conductor.

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    Coral

    Coral, common name for various small, sessile, usually colonial, marine invertebrates of phylum Cnidaria.

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    Cougar

    Cougar, puma or mountain lion (Felis concolor, family Felidae), is the most gracile of the New World wild cats. It has long legs and a tail, and a small head (similar to the African cheetah); thus, it has also been called the American cheetah. Colour varies from tawny to cinnamon or reddish brown; underparts are dull white. The backs of the ears, markings on the face and the last 5–8 cm of the tail are black.

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    CP Rail Crew Bus Crash

    On 28 May 1980, 22 workers on a Canadian Pacific Railway steel crew were killed in a bus accident on the Trans-Canada Highway near Webb, Saskatchewan, west of Regina. It was one of the deadliest motor vehicle disasters in Canadian history.

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    Cranberry

    ​Cranberries are tart, red berries. In Canada, most commercial production is in British Columbia and Québec.

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    Cranes in Canada

    The crane (Gruidae) is a family of large, long-necked birds with sturdy bills and long, powerful legs. Of the 15 species found worldwide, at least 5 have become rare, partly due to the loss of nesting habitat. Cranes nest in marshes, bogs, sedge meadows and upland tundra. In Canada, two species occur: the sandhill crane (Grus canadensis) is common, although one subspecies, the greater sandhill crane, is considered threatened in BC; the whooping crane (G. americana) is endangered. The sandhill crane nests as far north as Banks and Devon islands.

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    Crayfish

    Crayfish are moderately sized freshwater Crustacean of order Decapoda, similar in appearance to the American lobster. The term is also applied occasionally to marine spiny lobsters, although there have been attempts to discourage this usage. In the southern US, the preferred spelling is "crawfish." Crayfish are the écrevisses of French cuisine. Freshwater crayfish, found on all continents except Africa, number about 300 species worldwide. Distribution spans both hemispheres except for a narrow tropical belt approximately 15–20° on either side of the equator.

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    Creeper

    The creeper (family Certhiidae) is a small, brown-backed bird with a stiff tail and thin, downcurved bill.

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    Cricket (Insect)

    Over 2000 species of true crickets (superfamily Grylloidea) are known worldwide.

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    Crustacean

    Crustacean, shelled invertebrate with segmented body and limbs at some stage of its life, an exoskeleton and 2 pairs of antennae. The exoskeleton, a protective and supportive framework located outside the body, is periodically molted to allow for growth.

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  • Article

    Fisheries in Canada: Lobsters, Crab and Shrimp

    In Canada, all crustacean species with significant economic value are in the order Decapoda. Decapods, which have five pairs of walking legs, include lobsters, crab and shrimp. These species constitute most of the dollar value of Canadian fisheries. In some areas, particularly in the Atlantic provinces, the local economy is almost completely dependent on them.

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