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Every month, National Geographic staff photographer Mark Thiessen answers your photography questions—and spills the secrets behind the shots.
For Earth's defenseless marine animals, it's either blend in or get eaten. Take an inside look at some creatures who take this rule to the extreme.
Take a close look underwater—the creatures of the oceans rival anything on land when it comes to colors, textures, and surprises.
From run-of-the-mill tugboats to the R.M.S. Titanic, the drama, history, and treasure of sunken ships captures our imagination.
Visit Mexico with this interactive map.
Signs of and solutions to the world's water crisis.
Try something new, shake off old habits, take risks. The payoff? Fresher photo albums with a whole lot more pizzazz.
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