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Polar Bear vs. Grizzly Bear: Which Bear Is Bigger and Tougher?
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When it comes to massive, powerful bears, one showdown often comes to mind: polar bear vs. grizzly bear! These two bear species may look similar, but they have distinct differences in habitat, behavior and even diet. So, what happens when these giants of the animal kingdom cross paths?
Why Socotra Is Known as the 'Galapagos of the Indian Ocean'
science.howstuffworks.com/environmental/conservation/issues/socotra-yemen.htm
This alien-looking archipelago off the coast of Yemen is teeming with plants and animals. Many species here are threatened or endangered. Can they be saved?
How Drought Works
science.howstuffworks.com/nature/natural-disasters/drought.htm
What happens when the rains cease and water levels dry up precipitously? Everything from abundant grasses to apex predators suffers the consequences.
See If You Can Identify These Birds From an Image!
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From the finch to the snowy owl, a wide variety of familiar and exotic birds fly around in various regions of the world. Think you can name them all from a picture? Try our bird identification quiz to find out!
How the Panama Canal Makes Water Flow Uphill
science.howstuffworks.com/engineering/structural/panama-canal.htm
The Panama Canal has been one of the world's biggest engineering feats since it was built nearly by hand in the 1900s.
Coyotes: The 'Song Dogs' of North America
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The coyote inhabits most areas of North America. HowStuffWorks gets to know the 'song dog.'
10 Countries With Perfect Climates
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A perfect climate means different things to different people. These 10 countries span the globe and offer a wide range of climates to satisfy any taste -- hot, cold or in-between.
The Largest Desert in the World Isn't the Sahara
science.howstuffworks.com/environmental/earth/geology/largest-desert-in-world.htm
If you think the largest desert in the world is hot and sandy, think again. These 10 deserts spanning the globe are massive, but they're not all sunbaked.
World's Largest Wolves by Weight: The Mighty and the At-Risk
animals.howstuffworks.com/mammals/largest-wolves.htm
The world's largest wolves weigh up to 175 pounds (79.4 kilograms) and measure up to 6 feet (1.8 meters) in length.
How The Nature Conservancy Works
science.howstuffworks.com/environmental/conservation/conservationists/nature-conservancy.htm
The Nature Conservancy is explained in this article. Learn about the Nature Conservancy.