Aquarium guide
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THE AQUARIUM: AN ALTERNATIVE APPROACH TO ECOLOGY |
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THE AQUARIUM: AN ALTERNATIVE APPROACH TO ECOLOGY
A closed system like this lends itself particularly to the understanding of ecology,
providing an excellent introduction to a branch of science which emerged in the
19th century but has acquired a high profile only in the last twenty or so years.
It is not concerned simply with Man and his world, as many believe, but covers all
the mechanisms regulating relationships between living creatures and their environments,
so that all can live in harmony.
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ОВЦЕБЫК (мускусный бык) , парнокопытное животное семейства полорогих. Длина тела до 2,5 м, весит до 300 кг. Обитает на севере Канады (материковые тундры и острова), в Гренландии. Малочислен, находится под охраной. Акклиматизирован на Аляске, Шпицбергене, на п-ове Таймыр, о. Врангеля и др. Одомашненных овцебыков разводят на фермах (Канада, США, Норвегия).