Browse "Nature & Geography"

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Witch Hazel

Witch Hazel is the common name for a family (Hamamelidaceae) of trees or shrubs and refers especially to members of the genus Hamamelis.

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Wolf

The wolf is the largest wild member of the dog family. Living wolves belong to the Holarctic species Canis lupus (except red wolf, C. rufus of the southeast US).

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Wolverine

Wolverine, or carcajou (Gulo gulo), largest of the weasels, resembles a powerful, miniature bear.

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Wood Buffalo

Wood Buffalo, incorporated as a regional municipality in 1995, population 65 565 (2011c), 51 496 (2006c).

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Wren

The wren is a family (Troglodytidae) of small, mainly brown, insectivorous songbirds, characterized by chunky bodies, tails that are often erect, and forceful rather than musical songs.

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Yarrow

Yellowish disc florets (3-10) make up the central part, which is surrounded by 5 petal-shaped ray florets. They bloom from May to October. Yarrow has a dry, one-seeded fruit. Throughout the ages, yarrow has been used to stop blood flow, hence one common name, "nosebleed.

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Yeast

at genus level is based on the morphology of the spores and vegetative cells and, at species level, by the ability to metabolize different sugars and related compounds.

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Yellow Jacket

Yellow jackets are large WASPS that are closely related to HORNETS. Sometimes the names become confused because the only difference between yellow jackets and hornets is size; yellow jackets are smaller.

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Yew

Yew is the common name for evergreen conifers, genus Taxus, of the yew family (Taxaceae).

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Yukon River

At 3,185 km (1,149 km of which lie in Canada), the Yukon River is the fifth-longest river in North America.

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Zinc

Zinc (Zn) is a bluish-white metal of low to intermediate hardness that melts at 419°C and is estimated to comprise about 0.013% of the earth's crust. Zinc is an essential element for human health; over 200 enzymes in the body require zinc for proper functioning.

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Zoology

Zoology is the study of ANIMALS. Zoologists have many interests: some study form (morphology) or function (physiology), from gross to molecular levels; behaviour (ethology); association (ecology); or distribution (zoogeography); and some specialize in one kind of animal.

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Zooplankton

Zooplankton, weakly swimming animals belonging to many phyla (primary divisions of the animal kingdom), which, as larvae or adults, exist wholly suspended within a water body.

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Zoos

Zoos or zoological gardens are facilities exhibiting wild and domesticated animals for purposes of education, recreation, conservation and research. Zoological gardens can be conventional, dense-occupancy zoos to open animal parks and game farms.