Search for "indigenous families system"

Displaying 161-180 of 254 results
Article

Wildflowers

There are approximately 4000 species of flowering plants in Canada, of which about 3000 may be considered wildflowers. About one-quarter of these have been introduced from other regions of the world.

Article

Rock slide

A rock slide is a type of landslide occurring when a mass of rock moves quickly downslope.

Macleans

Toronto's Record Snowstorm

This article was originally published in Maclean’s magazine on January 25, 1999. Partner content is not updated.

As a storm raged outside, the constantly ringing phones went unanswered at Environment Canada’s Toronto offices last Thursday. Like many other workplaces in the city, it was shut down - by the worst series of blizzards ever to strike Toronto.

Article

Hornet

Hornet is the common name for wasps in the genus Vespa. They are members of the insect family Vespidae in the order Hymenoptera, which also includes other social wasps like yellowjackets and paper wasps. There are 22 species of hornets worldwide, none of which are native to Canada. However, three introduced species have been found here: the European hornet (Vespa crabro) in southern Ontario and  Quebec, and the Japanese yellow hornet (Vespa simillima) and Asian giant hornet (Vespa mandarinia) in coastal British Columbia. The bald-faced hornet (Dolichovespula maculata) is native to Canada, but is actually a species of yellowjacket.

Article

Tsunami

In the deep ocean a tsunami travels at about the speed of a commercial jetliner and its length from crest to crest can be 100 km or more, but its height will be less than a metre and therefore it will not be noticed by ships at sea.

Article

Loon

Loon (family Gaviidae) is a common name for a distinctive group of 5 large, swimming birds, all confined to the Northern Hemisphere and all occurring in North America.

Article

Tobacco

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

Article

El Niño

El Niño is a pronounced warming of the Pacific Ocean current off the coast of South America.

Article

Fruit Cultivation

Fruit growing is an important part of Canada’s food industry. Growing is usually restricted to areas where winter temperatures do not go much below -20°C.

Article

Deer

Deer (Cervidae) is a family of antlered, hoofed ruminants of the order Artiodactyla containing about 40 species worldwide.

Article

Butterfly

Butterfly, term referring to insects of order Lepidoptera [Gk "scaly wings"]. The Canadian fauna includes 272 known species, compared to 695 known from North America as a whole, and over 20 000 worldwide.

Article

Arctic Animals

Arctic animals are those that have adapted physically and behaviourally to the particular conditions of life in the most northerly regions on the planet.

Article

Black Fly

Black flies are small, dark-coloured insects belonging to the family Simuliidae. Of the world’s more than 2,300 species, at least 164 are found in Canada. Black flies reproduce in streams and are found all across Canada. They are particularly common in northern temperate and subarctic regions. Because female black flies need to feed on blood to lay eggs, their biting can be a nuisance to humans and other animals. Among the most common and notorious black flies in Canada are Simulium truncatum and Simulium venustum.

Article

Cave

Origins Lava tube caves, an important minor class, are formed by channelled outflow of molten lava in congealing flows. Sea caves most commonly result from erosion by waves.

Article

Ecosystem

    A limited space within which living beings interact with nonliving matter at a high level of interdependence to form an environmental unit is called an ecosystem.

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.

Article

Polar Bear

The polar bear (Ursus maritimus) is the largest living species of bear. They are found throughout the circumpolar Arctic. In Canada, this means polar bears live in parts of the Yukon, the Northwest Territories, Nunavut, Manitoba,Ontario, Quebec and Newfoundland and Labrador. Polar bears are both culturally and economically significant to the Inuit. As climate change continues to reduce their sea ice habitat, polar bears are increasingly threatened.

Article

Pea

Some pea cultivars are grown in gardens for their tender green pods as VEGETABLES, which are harvested at their early stage of development, and eaten raw or cooked. They are known as snowpeas, sugar peas or snap peas. In parts of Asia and Africa, tender pea foliage is harvested as vegetable.

Article

Cloud

  Cloud, visible suspension in the atmosphere composed of tiny water droplets or ICE crystals from about one to a few hundred micrometres in diameter.