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Why Do Humans Have Canine Teeth and More Questions From Our Readers

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How Do Butterflies Fly and More Questions From Our Readers

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Ask Smithsonian: Why Does My Nose Run When It’s Cold?

The nose knows that runny flows are necessary in the cold

Ask Smithsonian: Why Do We Kiss?

According to philematology, or the science for the study of kissing, romance has little to do with it

Ask Smithsonian: Can Elephants Jump?

The question is why would an animal weighing up to 16,000 pounds need to jump?

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Ask Smithsonian: What Is Wind?

Whether arriving on a gentle breeze or a stiff gale, air moves like water responding to high and low pressures around the Earth

Does Altitude Affect Animals the Same Way it Affects Humans and More Questions From Our Readers

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Ask Smithsonian: Why Do We Sneeze?

Whether you sneeze because of a cold, or after sex or a good meal or in sunlight, the good old Achoo is the body's way of ridding itself of irritants

Ask Smithsonian: How Do Colors Affect Our Moods?

Whether you are feeling green with envy or you're singing the blues, the link between color and feeling is a highly individual thing

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Ask Smithsonian: How Do Spiders Make Their Webs?

Learning exactly what those spinnerets are doing might just generate a whole new web of understanding

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When Did the Vice Presidency Stop Going to the 2nd Place Winner and More Questions From Our Readers

Also up for discussion—why are oceans seawater and not freshwater?

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Ask Smithsonian: What Is a Freckle?

Those adorable and charming spots splayed across the nose and cheeks might also be an indicator of sun damage

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Ask Smithsonian: How Do You Make a Mummy?

Mummification has been practiced for eons and the Egyptians are the best known, but not the only practioners

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Ask Smithsonian: Is the World Due for Another Massive Plague Outbreak?

It is highly unlikely, experts say, but a plague-based bioterror assault is another matter

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Why Do Astronauts on the International Space Station Float and More Questions From Our Readers

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Ask Smithsonian: How Does Night Vision Work?

The ability to see in the dark is becoming more accurate and more portable

How does skin heal? You'll never look at a scab the same way again.

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Ask Smithsonian: How Does Skin Heal?

The skin is an organ system that is unique to each individual, so not everyone heals the same way

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What Happens to Spiders That Get Sucked Into a Vacuum?

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Ask Smithsonian: Why Do Flamingos Stand on One Leg?

Flamingos may be doing their one-legged tree pose to stay warm or just because it's comfortable

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Ask Smithsonian: Why Do We Get Prune Fingers?

Some researchers say that, like tire treads, our fingers and toes could get better traction in wet conditions

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