When Was the Hot Dog on a Bun Invented?
When Was the Hot Dog on a Bun Invented? The first hot dogs on buns were served at the Chicago World’s Fair in 1893, the Colombian Exposition brought hordes of...
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How Do Chickens Chew Their Food?
Chickens, like all other birds, have an unusual way of chewing their food. The work of chewing is done by the gizzard, the part of the bird’s stomach where the...
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Why Did Dinosaurs Die Out?
Why Did Dinosaurs Die Out? Since their discovery in the nineteenth century, the reason for the dinosaurs’ demise has been a matter of speculation and debate. No...
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Why Do Leaves Turn Colors in the Fall?
Why Do Leaves Turn Colors in the Fall? The green we see in leaves all summer comes from the green pigment “chlorophyll,” which leaves use in making food. Other colors...
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How Do Sea Stars Eat?
How Do Sea Stars Eat? In recent years, starfish have been more correctly renamed “sea stars,” because they are not fish. They are echinoderms and related to sand...
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