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Understanding the Categories of Hurricanes
www.howstuffworks.com/define-hurricane-categories.htm
The categories of hurricanes are defined by wind speed and wind-caused building damage. The scale was created to communicate needs for post-storm resources.
Can You Tell If a Sand Dollar Is Alive Before Taking It Off the Beach?
science.howstuffworks.com/environmental/conservation/issues/sand-dollars-off-beach.htm
Everyone loves foraging for seashells at the beach, but the true jackpot is finding a perfect unbroken sand dollar. However, taking one home may not be such a good idea.
Are Whales Mammals? Yes, and They're Related to Hippos
animals.howstuffworks.com/mammals/are-whales-mammals.htm
If you've ever wondered, "Are whales mammals?" the answer is a resounding yes. Despite their fish-like appearance, whales belong to the order Cetacea and share many features with other mammals. From breathing air to nursing their young, these marine giants check every mammalian box.
10 Deep Sea Creatures That Are (Almost) Too Bizarre to Be Real
animals.howstuffworks.com/marine-life/deep-sea-creature-list.htm
Far below the ocean's surface, in the dark depths of the deep sea floor ecosystem (about 3,000 feet or 1,000 meters deep), exists an entire world of deep sea creatures that humans rarely glimpse.
How many sharks are killed recreationally each year -- and why?
animals.howstuffworks.com/fish/sharks/shark-fishing.htm
Shark fishing is endangering these saltwater fish that have been around longer than the dinosaurs. Learn why shark fishing has become such a threat.
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.