Nature & Geography | The Canadian Encyclopedia

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  • Article

    Thrasher

    Thrashers (Mimidae) are a small family of slender, long-tailed, medium-sized, insectivorous and frugivorous birds with loud, musical, repetitive songs. 

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    https://d3d0lqu00lnqvz.cloudfront.net/media/media/0b04d7e6-d80a-4290-8760-e575afc17c1b.jpg Thrasher

  • Article

    Thrips

    Thrips, order Thysanoptera (Gk for "fringe-wings"), are among the smallest insects, being slender and usually less than 2 mm long.

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Thrips

  • Article

    Thrush

    Thrushes (Muscicapidae) are a very large family comprising about 450 species of small passerines (perching birds) ranging 11-33 cm in length. 

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Thrush

  • Article

    Thunderstorm

    Thunderstorms usually occur on summer afternoons. While a thunderstorm typically affects a given locality for only an hour or so during its passage overhead, the entire lifetime may be as long as 6-10 hours, along a pathway of several hundred kilometres.

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Thunderstorm

  • Article

    Tick

    Ticks are small, bloodsucking arachnids that live as external parasites on terrestrial mammals, birds, amphibians and reptiles. Ticks belong to the order Ixodida, a group of parasitic mites in the superorder Parasitiformes. This superorder also includes the varroa mite, a destructive parasite of honeybees. About 900 tick species are known worldwide, of which 48 have been found in Canada. Although they are most diverse in tropical regions, ticks continue to be significant pests to humans and other mammals as far north as the Canadian tundra.

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    https://d3d0lqu00lnqvz.cloudfront.net/tick/Female-Black-Legged-Tick-on-Leaf.jpg Tick

  • Article

    Tidal Energy

    Tidal energy is a largely untapped, renewable energy source based largely on lunar gravitation. While the potential of tidal hydroelectricity has long been recognized, compared to river dams, tidal power projects are expensive because massive structures must be built in difficult saltwater environments.

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  • Article

    Tide

    The Earth is actually not in orbit around the sun but around the centre of mass of the Earth-sun system. Since all parts of the Earth move in the same orbit, they experience the same acceleration, but only at the Earth's centre is this acceleration exactly balanced by the sun's gravitation.

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    https://d3d0lqu00lnqvz.cloudfront.net/media/media/989a9feb-532c-452f-829d-b5fecf83d434.jpg Tide

  • Article

    Tiktaalik

    Tiktaalik is a genus of lobe-finned (sarcopterygian) fish from the Devonian Period found on Ellesmere Island, Nunavut, in Canada’s Arctic Archipelago. A single species is known of Tiktaalik, T. roseae, which lived approximately 385 million years ago. The species was named in 2006 in two articles that described several articulated specimens. These articles set off a storm in the popular press. Titkaalik represents a clear and important evolutionary step in the journey of animals onto land.

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    https://d3d0lqu00lnqvz.cloudfront.net/tiktaalik/Tiktaalik-Model.jpg Tiktaalik

  • Article

    Timber Slide

    A timber slide is a water-filled chute or runway built to carry “cribs” of timber around rapids and waterfalls. (See also Raft). Similar devices for individual pieces of wood were called “flumes.” Timber slides contributed to the growth of the timber industry in the 19th century (see Timber Trade Industry).

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    https://d3d0lqu00lnqvz.cloudfront.net/timbertrade/timberslidedukeandduchess.jpg Timber Slide

  • Article

    Titanium

    Titanium (Ti) is a metallic element estimated to form about 0.5% of the rocks of the Canadian SHIELD. Titanium minerals of commercial importance include the dioxides rutile and anatase, which are polymorphs of TiO2 and ilmenite (FeO.TiO2), a mineral that contains 52.7% TiO2.

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Titanium

  • Article

    Toad Species in Canada

    Toad is a common name for frogs belonging to the family Bufonidae. The distinction is not firm, but the word toad is generally applied to frogs with relatively short legs and thick bodies, dry, often “warty” skin and reduced webbing between the toes. Five toad species are found in Canada, living in drier habitats than most other frogs. In Canada, other frogs commonly called toads are the Plains and Great Basin spadefoots (family Scaphiopodidae). For more general information about frogs (including toads) see Frog Species in Canada.

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    https://d3d0lqu00lnqvz.cloudfront.net/Toad/AmericanToad.jpg Toad Species in Canada

  • Article

    Tobacco

    Tobacco (Nicotiana tabacum) is an annual (potentially perennial) herbaceous plant of the nightshade family.

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Tobacco

  • Article

    Tobacco-Products Industry

    Tobacco (Nicotiana tabacum) is an annual herbaceous plant of the nightshade family. In Canada, tobacco growing expanded commercially in the late 19th century.

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  • Article

    Tomato

    Tomato (Lycopersicon esculentum) is a herbaceous perennial which, in Canada, is grown as an annual because of early frost.

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  • Article

    Tornado

    Tornadoes are a type of severe storm. They are typified by a funnel-shaped cloud descending toward the earth. 

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