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Milkweed

Milkweed is the common name for perennial, herbaceous plants of genus Asclepias, family Asclepiadaceae (from Greek physician Asclepius).

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Mollusc

The mollusc is a soft-bodied, usually shelled invertebrate belonging to one of the largest animal phyla (Mollusca) with some 100 000 living and about 35 000 fossil species.

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Magpie

Magpie is a common name for birds of several genera in the crow family. Some 20 species are known worldwide; however, only the black-billed magpie (Pica hudsonia) is found in Canada.

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Mistletoe

Mistletoe family, Loranthaceae, includes about 30 genera and over 1000 species. It is predominantly tropical but has members in temperate regions.

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Murre

The term murre refers to 2 species, common murre (Uria aalge) and thick-billed murre (U. lomvia), the largest extant members of the auk family.

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Sucker

Sucker, freshwater fishes of the family Catostomidae, and closely related to minnows.

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Molluscan Resources

Although Canada's coastline is extensive and contains many diverse molluscan species, the resource is economically relatively small. In 1995 nearly 200 000 t valued at $114.5 million were taken.

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Mink

The American mink (Mustela vison) is a small, amphibious weasel inhabiting wetlands throughout Canada, excluding the tundra, and abundant on the BC seashore.

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Metallurgy

Metallurgy is the art, science and technology of turning metals and alloys (i.e., materials consisting of two or more metals) into forms suitable for practical use.

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Moth

Moths are distinguished from butterflies by having threadlike or feathery antennae. Most are nocturnal. They vary in size from adults of some leaf miners with wings spreading little more than 3 mm to the Asian atlas moth, spreading 20 cm.

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Mussel

The mussel is a bivalve (hinged shell) mollusc of either the marine order Mytiloida or the freshwater superfamily Unionacea.

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Oak

The Oak (Quercus) is a genus of trees and shrubs of the beech family (Fagaceae). Of the estimated 200 species found worldwide, 75-80 occur in North America and 10 in Canada.

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Mycorrhizae

Associations between PLANT roots and FUNGI are mycorrhizae and are thought to occur on roots of 95% of all SEED PLANTS. They are probably essential to the survival in nature of both partners. The plant derives an enhanced ability to absorb essential minerals and greater resistance to root diseases.

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Muskox

Muskox (Ovibos moschatus), shaggy, horned Artiodactyl of the cattle family (Bovidae); occurs naturally only in Canadian arctic tundra (mainland and Arctic Archipelago), Alaska and in Greenland.

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Northern Lights

Current theory states that the energy driving auroras is obtained from the solar wind, a gas composed primarily of protons and electrons, blowing away from the SUN at supersonic velocities of 300-1000 km/s (seePHYSICS).

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Ozone Layer

The development of the ozone layer is thought to have been a significant factor permitting the evolution of life on Earth. Ozone is the main atmospheric gas that absorbs the biologically damaging part of the sun's ultraviolet radiation (UV radiation), known as UV-B (ultraviolet-biologically active).

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Octopus

Octopus is the common name for all 8-armed cephalopod molluscs; it more properly refers to the largest genus in order Octopoda (over 100 species).

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Otter

 The river otter (Lutra canadensis) occurs throughout North America except in desert and arid tundra regions. In Canada it is scarce, except along the BC coast, where it is abundant and often wrongly identified as a sea otter.