

Stirring ingredients into your vocabulary does not have to be an ordeal. Just follow this route to our glossary. We add new words for each issue.

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Saguaro cactus Mark Newman/Age Fotostock
Spider Fong Kam Yee/Shutterstock
Sea star Norbert Wu/Minden Pictures/National Geographic Stock
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Center of Life In the hot, dry desert, a spiky cactus is the center of life. Learn how this surprising plant helps animals survive living in the desert.

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Spiders! Some people think spiders are scary. In fact, these animals are some of the most interesting on Earth. Learn how they hunt.
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Extreme Life Could you survive in temperatures below freezing? How about in a cave filled with poisonous gas. Some things can. Find out how.
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