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Fast-flowing waters of the Humber River, Newfoundland, are a challenge to Atlantic salmon migrating
Mutualisms, such as those that occur among plants and pollinators, generally involve large numbers o
The bobcat population has seen declines in the American Midwest, but is generally stable and healthy
Male giraffe mounting a female. Only dominant males are generally able to mate.
Generally, the total tax burden in the United States is much lower than that of other industrialize
The West Bank Challenge