Browse "Nature & Geography"

Displaying 661-675 of 740 results

  • Article

    Tanager

    The tanager (Thraupidae) is a family of small songbirds, possibly comprising as many as 413 species. 

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

  • Article

    Tantramar Marsh

    The Tantramar marsh is one of four saltwater tidal marshes covering 20,230 ha on the narrow Chignecto Isthmus that connects New Brunswick and Nova Scotia.

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    https://thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Tantramar Marsh

  • Article

    Termite

    Termites are social insects of the infraorder Isoptera. They may be thought of as “social cockroaches,” as they evolved from their wood-eating cockroach ancestors approximately 200 million years ago. 

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  • Article

    Montréal Biodôme

    Opened in 1992 and located in the former Olympic velodrome, the Montréal Biodôme is part of the “Space for Life” network, which includes Montréal’s Insectarium, Planetarium and Botanical Garden.

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    https://d3d0lqu00lnqvz.cloudfront.net/media/media/602331f5-435c-42b0-848e-0be2945dce57.jpg Montréal Biodôme

  • Article

    Thistle

    The thistle (Carduaceae tribe, family Compositae or Asteraceae) is a spiny herbaceous plant with white or purple flowers. There are 800 species worldwide, 46 in Canada (15 native). Native species (none serious WEEDS) are mainly "true" or "plumed" thistles of genus Cirsium.

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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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    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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  • 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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    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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    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

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    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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  • 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

    Time Zones in Canada

    There are six time zones in Canada covering four and a half hours. From west to east, these time zones are: Pacific, Mountain, Central, Eastern, Atlantic and Newfoundland. From the first Sunday in November to the second Sunday in March, these zones are referred to as standard time zones and may be abbreviated as PST, MST, CST, etc. From the second Sunday in March to the first Sunday in November, most of Canada follows daylight saving time. During this summer period, the time zones may be abbreviated as PDT, MDT, CDT, etc. The boundaries of the standard time zones are not necessarily the same as those of the corresponding daylight saving time zones. Boundaries shift because some municipalities choose not to participate in daylight saving time or to remain in it year-round. Saskatchewan follows CST year-round, and, as of 2020, Yukon follows PDT, also known as Yukon Standard Time, year-round. As of summer 2026, British Columbia will also remain in PDT year-round, now simply called Pacific time.

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    https://d3d0lqu00lnqvz.cloudfront.net/media/new_article_images/TimeZones/NewTimeZonesEN.jpg Time Zones in Canada

  • 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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