Browse "Nature & Geography"

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  • Article

    Department of Natural Resources

    The Department of Natural Resources was established in 1993, replacing Energy, Mines and Resources as a federal agency. Some of the department's components have long histories. The Department of Mines, created in 1907, was reorganized as the Department of Mines and Resources in 1936.

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  • Article

    Devon Island Miocene Fossils

     FOSSIL bones were first discovered in 1978 in the rocks formed in the now vanished Haughton Lake.

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  • Article

    Dinosaurs and Canada

    Dinosaurs were a group of animals that dominated the land environments of every continent. They lived from the late Triassic period to the end of the Cretaceous period (225 to 65 million years ago). However, birds are the direct descendants of dinosaurs, meaning dinosaurs are still common today. Paleontologists have found at least 88 different species of dinosaurs in Canada (see also Dinosaurs Found in Canada). The primary site of these fossils is Dinosaur Provincial Park, Alberta. Well-known dinosaurs first named from Canadian specimens include Albertosaurus, Centrosaurus, Corythosaurus, Dromaeosaurus,Gorgosaurus, Lambeosaurus, Pachyrhinosaurus, Parasaurolophu sand Styracosaurus.

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  • Article

    Dinosaur Eggs

    Members of the Central Asiatic Expedition, led by the American Museum of Natural History, first recognized dinosaur eggs in Mongolia in the 1920s. Since then, paleontologists have discovered fossilized remains of dinosaur eggs at over 200 locations worldwide. These locations include sites in Africa, China, Europe, India, Korea, and the Americas. The first dinosaur eggs from North America were discovered in Montana in the late 1970s. In Canada, dinosaur eggshell fragments were initially found in the early 1980s. Complete dinosaur eggs were discovered in 1987 at a site in southern Alberta known as Devil’s Coulee.

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  • Article

    Dinosaur Hunting in Western Canada

    Most early discoveries were made in artificial excavations, eg, rock quarries or coal mines.

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    Dinosaurs Found in Canada

    Canada is home to some of the richest deposits of dinosaur fossils in the world (see also Dinosaurs and Canada). The vast majority of the dinosaurs discovered in Canada are from Alberta, where the rising Rocky Mountains at the end of the Cretaceous period and a network of ancient rivers provided the sediment necessary for burying and preserving their remains. The names of many of the 88 dinosaurs listed below pay homage to the province, including Albertosaurus sarcophagus, Edmontosaurus regalis and Ornithomimus edmontonicus. Others honour prominent people in Canadian paleontology, for example, Lambeosaurus for Lawrence Lambe, a paleontologist active at the turn of the 20th century, Epichirostenotes curriei for Philip Currie, a paleontologist and the founder of the Royal Tyrrell Museum and Borealopelta markmitchelli for Mark Mitchell, an RTM technician who spent 7,000 hours removing rock from the fossil.

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  • Article

    Dipper

    The dipper (Cinclidae) family of birds comprises 5 species of birds known colloquially as water ouzel.

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    Dobsonfly

    The dobsonfly is a large (100-140 mm), soft-bodied freshwater insect of order Megaloptera, family Corydalidae; smaller forms are called fishflies.

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  • Article

    Dock

    Dock, herbaceous plant of genus Rumex, family Polygonaceae (buckwheat); most docks are perennial. 

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  • Article

    Dogs in Canada

    Dog (Canis familiaris) is a carnivorous mammal, and probably the first domesticated animal. In Canada, dogs were first kept by Indigenous peoples. The Canadian Kennel Club recognizes 187 breeds, five of which are uniquely Canadian: the Tahltan bear dog, the Canadian Inuit dog, the Nova Scotia duck-tolling retriever, the Newfoundland dog and the Labrador retriever. A sixth dog breed indigenous to Canada, the Salish woolly dog, went extinct before the Canadian Kennel Club officially registered it as a breed.

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  • Article

    Dogwood

    Dogwood (Cornaceae), family of perennial herbaceous plants, trees and shrubs, represented in North America by about 15 members of the genus Cornus. 

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    Dolphin and Porpoise

    Dolphin and porpoise are the common names for small, toothed mammals of the order Cetacea, which also includes whales. They are found in all oceans and many major river systems. In North America, dolphins, with long snouts, are distinguished from porpoises, with blunt heads, but the terms are sometimes applied interchangeably to many small toothed whales, including members of the families Delphinidae, Phocoenidae, Stenidae and Platanistidae. 

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  • Article

    Dorion School Bus–Train Crash

    A collision between a school bus and a freight train on 7 October 1966 killed 19 students from Cité-des-Jeunes secondary school near Vaudreuil, Quebec, and their bus driver. The crash is among the worst road disasters in Canadian history.

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  • Article

    Dove

    Dove is the name applied to certain species of the pigeon family, especially to those of smaller size.

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  • Article

    Dragonfly

    Dragonfly, common name for robust carnivorous insects of order Odonata [Gk "toothed," referring to mouth parts].

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