When Does a Hermit Crab Change Its Shell?
When Does a Hermit Crab Change Its Shell? A hermit crab changes its shell when it has grown large enough to need a bigger home. This type of crab has a soft abdomen or...
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What Is a Laughing Hyena, and Does It Really Laugh?
What Is a Laughing Hyena, and Does It Really Laugh? There is a type of hyena that is known as the laughing hyena. This is the spotted hyena of Africa. Despite its name,...
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Who First Domesticated Animals?
Who First Domesticated Animals? Neolithic people were the first to domesticate animals and begin to plant crops. This great step forward towards civilization took place...
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How Do Frogs Breathe under Water?
How Do Frogs Breathe under Water? Under water, frogs breathe through their skins. A frog is an amphibian. That is to say it lives both on land and in water. It has...
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When Is a Butterfly Formed?
When Is a Butterfly Formed? A caterpillar starts to become a butterfly as soon as it enters the chrysalis stage, by wrapping itself in a cocoon. During this phase,...
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Why Do Many Flowers Have a Sweet Scent?
Why Do Many Flowers Have a Sweet Scent? The sweet scent of flowers is designed to attract insects who seek food in the shape of pollen and the fragrant-smelling nectar....
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What Is Reindeer Moss?
What Is Reindeer Moss? Reindeer moss is a species of lichen so called because it is the staple winter food of reindeer (and caribou) in Arctic and sub-Arctic regions....
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Why Do Your Feet Stink?
Why Do Your Feet Stink? No matter what you do, your feet stink. Why is that? The culprit is bacteria. These tiny organisms just love your feet. In fact, they look at...
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Where Was the First Zoo?
Where Was the First Zoo? The predecessor of the zoological garden is the menagerie, which has a long history from the ancient world to modern times. The oldest known...
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Why Do Dogs Have a Good Sense of Smell?
Why Do Dogs Have a Good Sense of Smell? Dogs have a better sense of smell than we do because the physical structure of dog is better adapted for scenting odors. In dogs...
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