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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.
The Sea Cucumber Eats, Poops and Breathes Through a Cloaca
animals.howstuffworks.com/marine-life/sea-cucumber.htm
The soft, cylindrical sea cucumber looks like a vegetable — and in some countries, it's a delicacy because of its nutritional value and health benefits. But it actually belongs to the phylum of echinoderms, closely related to starfish (aka sea stars), sand dollars, sea urchins and sea lilies.
What if there were no sharks?
animals.howstuffworks.com/fish/sharks/what-if-there-were-no-sharks.htm
We may be fascinated by sharks, but they can cause trouble for other species. Learn what Earth would be like if there were no sharks at HowStuffWorks.
What If All the Coral Reefs Disappeared?
science.howstuffworks.com/science-vs-myth/what-if/what-if-all-coral-reefs-disappeared.htm
Coral reefs are pretty cool. More than just snorkeling destinations, they shelter tons of marine life - creatures many of us depend on for food and medicine. So what would happen if the coral reefs disappeared? Here's a hint: It isn't good.
15 Animals That Start With 'S': From Sea Lions to Scarlet Macaws
animals.howstuffworks.com/animal-facts/animals-that-start-with-s.htm
The animal kingdom is full of incredible creatures, and today we’re focusing on animals that start with "S." Some of them thrive in the wild today, while others once roamed the Earth but are now gone forever.
9 Deep-diving Facts About the Lands of Oceania
history.howstuffworks.com/world-history/oceania.htm
Fourteen countries and 39 million square miles make up Oceania in the South Pacific. And bungee jumping was invented there, too.
What Are the 7 Largest Countries in the World by Area?
science.howstuffworks.com/environmental/earth/geophysics/largest-countries-in-world-by-area.htm
The seven largest countries in the world account for nearly half of the world's land area, but one is far larger than the rest. Do you know what the largest country is?
What is a levee?
science.howstuffworks.com/engineering/structural/levee.htm
Whether they make you think of Hurricane Katrina or Led Zeppelin, levees are a critical safety feature for low-lying areas located near water. Why do they break?
Are You a Geography Guru?
play.howstuffworks.com/quiz/are-you-a-geography-guru
The world is a large and expansive place, with lots to know and discover. But just how much do you know about the lay of the land? Fancy yourself a geography guru? If so, take on our challenge to prove it.
Can You Identify These Saltwater Fish?
play.howstuffworks.com/quiz/can-you-identify-these-saltwater-fish
The 2003 flick "Finding Nemo" and its sequel "Finding Dory," introduced a whole new generation to the wonders of the undersea world. See how many of these sea swimmers you can recognize with this quiz!