Why Do Beavers Build Dam?
Why Do Beavers Build Dam? The beavers of North America build a dam to create an artificial lake in which to construct an island home or lodge. They are the...
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How Can Lungfish Live out of Water?
How Can Lungfish Live out of Water? Most fish die if they are taken out of the water. However, the African lungfish (also known as the mudfish) can live for many months...
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Do Hippos Sweat Blood?
Sometimes the hippo’s thick hide becomes covered with pinkish dew. He looks to be sweating blood, but actually, this is not so at all. The big fellow spends about half...
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What Is a Whirlpool? How Does It Affect the Climate?
What Is a Whirlpool? How Does It Affect the Climate? A whirlpool is a body of swirling quickly rotating mass of water in a river or sea into which objects may be drawn,...
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How Do Glaciers Form?
A glacier is a great river of ice that moves slowly down a mountain. Glaciers form in high mountain valleys, where summers are so cold that most of the winter snow...
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