How Was the Controlled Use of Fire Discovered?
How Was the Controlled Use of Fire Discovered? According to the Greek mythology, Prometheus stole fire from the gods and gave it to humans. Many Native American...
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Do All Other Creatures Use Tools?
Do All Other Creatures Use Tools? Man was not the first of the creatures on earth to use a tool. Tools are used by animals to perform behaviors including the...
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Why Do Sharks Attack People?
Why Do Sharks Attack People? Sometimes sharks attack people by mistake; they actually think they’re biting a fish or a seal. Other attacks happen when humans...
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What Is Acid Rain?
Acid rain is created when rain mixes with pollution in the air. Pollution fills the air with an invisible gas called sulfur dioxide. (This gas is mainly a result of...
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Can Cats See Colors?
Can Cats See Colors? A cat’s vision is similar to a human who is color blind. Cats have a type of color blindness that some humans have, called deuteranopia. They...
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