Wildlife conservationists say the cover that foliage provides for animals is equal in importance to the food supplying.
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The founding of the Boston Library in 1653 demonstrate the early North American colonists
Even many early leaders of the United States have provided names for towns, only George Washington is remembered in the name of a state.
One out of every ten persons in the 1978 United States labor force was a teenager, compared by one out of fifteen in 1960.
"How does the human brain work?" remains one of the most profound questions confront modern science.