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Why Do Lizards Do Push-Ups? Lizards work out for the same reason a guy at the gym might: as a display of strength.
Why Are 'Mama' and 'Dada' a Baby's First Words? Many babies delight their parents with recognition upon uttering their first words. Now scientists think they know why.
Why Do We Get Baggy Eyes? As we age, our eyes inevitably take on a baggy look. Now scientists think they know why.
What Is Baking Powder? It's something that didn't exist until the mid-19th century
What is Baking Soda? It's sodium bicarbonate, and it comes from a mineral called natron.
What's Inside a Planet? The planets in our solar system contain a diverse array of ingredients.
What's Inside the Giant Planets? A look inside the giants.
How Hot Are The Planets in Our Solar System? In general, the surface temperature of the planets decreases with increasing distance from the sun.
What is Blood Doping? Blood doping increases an athlete's red blood cell count and boosts performance.
What Exactly Is the Olympic Tradition? The Olympics values should underly all Olympic activities and extend beyond the playing field.
What Do the Olympic Rings Symbolize? The meaning of the Olympic Games' five interlocking rings is not at all black-and-white.
Can a Nuclear Blast Alter Earth's Rotation? Nuclear bombs are humankind's most powerful weapon
Why Are Construction Cranes So Dangerous? Construction cranes can be lethal in the wrong hands.
When Did Bowling Start? An Egyptian child's tomb, dating to 3,200 B.C., contained bowling balls and pins.
Can Ball Lightning Be Created in Microwave Ovens? Are glowing orbs in a reheating appliance the same thing as ball lightning?
What Is the Strategic Petroleum Reserve? The Strategic Petroleum Reserve is a backup supply of crude oil that's pumped into deep underground salt caverns.
Why Do Doctors Wear Green Or Blue Scrubs? Green may be well-suited to help doctors see better in the operating room.
How Far Away is the Horizon? How far away is the horizon? It depends on your height, the temperature, weather and topography.
Can Frogs Survive Being Frozen? What happens to frogs in the winter?
Do Old Glass Windows Sag? Some people window glass, which can behave like a liquid, sags under gravity.
What's the Difference Between Alligators and Crocodiles? Coming face to face with a crocodile or an alligator, you'd likely see a mouth full of serrated teeth.
Can Snakes Smell Anything? Most snakes have an excellent sense of smell, in part to make up for their poor eyesight and limited hearing.
Do Snakes Have Ears? Snakes have no visible ear, so they don't hear sounds as we do.
Can Snakes See Well? Generally they can see shapes but not details.
What Are the Origins of Famous Patriotic Songs? You may know the lyrics to these popular patriotic tunes. But you may be surprised to learn about how they began.
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