Browse "Nature & Geography"

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  • Article

    Rabbit Farming

    Rabbit farming, officially called cuniculture (from the species name for wild rabbits, Oryctolagus cuniculus), is a small part of Canadian agriculture, with most production in Ontario and Québec.

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  • Article

    Raccoon

    The common raccoon (Procyon lotor) is a mid-size mammal distinguished by its black face mask and ringed tail. It is a member of the Procyonidae, a primarily tropical family of omnivores native to the Americas — and the only one of this family found in Canada. Raccoons are found in every province except Newfoundland and Labrador. A nocturnal species, it is highly adaptable and can survive in urban areas as well as wilderness habitats. Humans often consider raccoons pests due to their skill and persistence in raiding garbage bins, gardens and crops for food.

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  • Article

    Racoon

    Racoon was a 26-gun British sloop of war sent to seize Astoria, the American Pacific Fur Company post at the Columbia River mouth, and to establish an outpost there during the War of 1812.

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  • Article

    Radish

    Radish (Raphanus sativus) is a hardy annual or biennial vegetable belonging to the Cruciferae family. Roots are mostly rounded with a red exterior and white, acrid flesh. 

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  • Article

    Ragweed

    Ragweed is an annual or perennial plant of the genus Ambrosia, family Compositae or Asteraceae. Fifteen species are native to North America; 3 occur across Canada: common ragweed (A. artemisiifolia), perennial ragweed (A. coronopifolia) and giant ragweed (A. trifida).

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  • Article

    Rail

    Rail is the common name for some members of the rail family (Rallidae) of birds.

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  • Article

    Rain

    Central US lows, entering Canada somewhere between Manitoba and Québec, are of major environmental significance because they pass through the industrial heartland of the US and frequently bring ACID RAIN.

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  • Article

    Rainbow

    A rainbow is a coloured arc that occurs when sunlight shines onto falling raindrops and is refracted, then reflected back towards the observer. In this process, each drop acts as a tiny prism, splitting the sun's rays (according to wavelength) into their component colours.

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  • Article

    Rainfall Extremes

    The amount of rain or snow that reaches the ground can vary dramatically on any particular given day, even over short distances. Many people have experienced a near-deluge of rain in their backyard, while at the same time their front yard or their neighbour's home remains quite dry.

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  • Article

    Rainfall Extremes: Table

    Rainfall Extremes: Table Rainfall Extremes: Table Rainfall Extremes: Table Alberta 213 mm Eckville South June 1970 BC 489 mm Ucluelet October 1967 Manitoba 217 mm Riding Mountain Park September 1975 New Brunswick 179 mm Alma April 1962 Newfoundland 173 mm St. John's August 1876 Northwest Territories 91 mm Ennadai Lake September 1972 Nova Scotia 239 mm Halifax September 1942 Ontario 264 mm Harrow July 1989 PEI 164 mm Charlottetown September 1942 Québec 172 mm Barrage...

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  • Article

    Rapeseed

    Rapeseed, see CANOLA.

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  • Article

    Rat

     Rat is a common name for certain mammals of order Rodentia, family Muridae.

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  • Article

    Rat Control in Alberta

    Rat control in Alberta is administered and co-ordinated by Alberta Agriculture and Food. It was established in 1950 to keep Alberta free of Norway rats (seeRAT), which were introduced to the east coast of North America in 1775

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  • Article

    Rattlesnakes in Canada

    Rattlesnake is the common name for about 30 species of venomous, viperid snakes in the genera Crotalus and Sistrurus, found from southern Canada to South America. Three species of rattlesnake are found in Canada: the Western rattlesnake (Crotalus oreganous), the prairie rattlesnake (Crotalus viridus) and the Eastern massasauga rattlesnake (Sistrurus catenatus). Another species, the timber rattlesnake (Crotalus horridus), is extirpated, meaning the species no longer exists in the wild in Canada but continues to live in the eastern United States.

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    https://d2ttikhf7xbzbs.cloudfront.net/rattlesnake/eastern-massasauga-rattlesnake.jpg Rattlesnakes in Canada

  • Article

    Raven

    The raven is a large, black bird with a purplish lustre, belonging, like the crow, to the genus Corvus.

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