Why Do Some Bears Sleep All Winter?
Why Do Some Bears Sleep All Winter? Many bears sleep through the coldest days of winter because they cannot find enough food. As the weather gets colder, a bear needs...
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Where Do Flies Go in the Winter?
Where Do Flies Go in the Winter? Most flies live their lives in spring and summer, and then die. In cold climates, only a few adult flies hibernating in sheltered...
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What Causes the Colors of Autumn Leaves?
What Causes the Colors of Autumn Leaves? Leaves contain a variety of colors – green, orange, yellow, and brown. But during the spring and summer, there is much...
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What Causes the Change of Seasons?
What Causes the Change of Seasons? The movement of the Earth around the sun causes the seasons. The Earth is tipped slightly as it moves along its path around the sun....
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