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Why Were So Many Prehistoric Animals So Big?
animals.howstuffworks.com/extinct-animals/why-were-prehistoric-animals-big.htm
A lot of prehistoric animals were massive, but do we really know why? And is there a larger animal roaming the planet today?
The Most Expensive Metal in the World Isn't Gold or Platinum
science.howstuffworks.com/most-expensive-metal.htm
Precious metals are not just shiny and attractive; these elements are also incredibly valuable, often used in a wide range of industries from jewelry to high-tech applications.
15 Butterfly Species to Spot on (Almost) Every Continent
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Butterflies aren't just colorful decorations fluttering around flowers. They are one of the most diverse groups of insects, with more than 17,000 known species.
Can You Match These American Landmarks to Their State?
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Every state has its unique landmarks, some of which are more popular than others. How well do you know the ones across your country? Let's find out!
Could You Pass This Canadian Geography Quiz?
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If you've traveled around the country, or just know your stuff about Canada, you've found the right quiz. You live here, but how well do you really know the geography of your country? Find out by taking a trip from BC to Newfoundland on this quiz!
How Deep Are the Great Lakes? And Why Are They Great?
science.howstuffworks.com/environmental/earth/geophysics/5-reasons-why-great-lakes-are-so-great.htm
The Great Lakes are named so for several reasons. HowStuffWorks looks at why the Great Lakes are so great, including their impressive depths.
Rhubarb: The Poisonous Veggie You Can Totally Eat
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What vegetable is often mistaken for a fruit, has poisonous leaves but is still edible and is often harvested by candlelight? Yep, that would be rhubarb.
American Bittersweet
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American bittersweet is a type of vine. Learn about growing, propagating, and using American bittersweet.
How does catnip work?
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What exactly is catnip? How does it work? Learn about catnip at HowStuffWorks.
Allosaurus Was a Massive 'Flesh Grazer' and Possible Cannibal
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A full grown Allosaurus could be up to 34 feet long, stand 9 feet tall and weigh around 3 tons. This dino was a monster who, scientists suspect, would even eat his own kind.