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How the Mason-Dixon Line Divided the North and the South
history.howstuffworks.com/historical-events/mason-dixon-line.htm
The Mason-Dixon Line has ties to slavery, which often overshadows its otherwise fascinating story about one of the most significant surveying achievements in North America.
Scary Prehistoric 'Hell Pigs' Once Roamed the Earth
animals.howstuffworks.com/extinct-animals/prehistoric-hell-pigs-once-roamed-earth.htm
These super-frightening entelodonts (aka hell pigs) once patrolled throughout Eurasia, North America and Africa.
Cottonmouth: Snake With Potent Venom and Catlike Eyes
animals.howstuffworks.com/snakes/water-moccasin-cottonmouth.htm
Cottonmouth snakes are often called water moccasins and are one of only four venomous snakes found in North America.
Slide Down Daredevil's Peak
www.howstuffworks.com/videos/daredevils-peak-cococay-video.htm
HowStuffWorks sails with Royal Caribbean to see how North America's tallest waterslide, Daredevil's Peak, works!
So, the American Alligator Can Climb Trees ... How Terrifying
animals.howstuffworks.com/reptiles/american-alligator.htm
The American alligator is the second-largest reptile in North America, falling just slightly behind its cousin, the American crocodile.
Queen Snake: Not Regal But as Picky as Royalty
animals.howstuffworks.com/snakes/queen-snake.htm
Today, we're going to dive into the watery world of one of North America's most fascinating reptiles: the queen snake.
How to Treat a Cat That Has a Snakebite
animals.howstuffworks.com/pets/how-to-treat-a-cat-that-has-a-snakebite.htm
Although most snakes are nonpoisonous in North America, their bite still can be harmful to a cat. Learn how to treat a cat has suffered a snakebite.
What Does the Poinsettia Have to Do with Christmas?
people.howstuffworks.com/culture-traditions/holidays-christmas/christmas-poinsettia1.htm
The poinsettia's flame-red leaves are a staple in holiday decorations. But how did a plant indigenous to tropical climates end up on mantels in North America?
Uncovering Lake Vostok, Hidden Under 2 Miles of Antarctic Ice
science.howstuffworks.com/environmental/earth/geophysics/lake-vostok.htm
Deep underneath Antarctica, there lies a hidden lake. Roughly the size of North America's Lake Ontario, the buried landmark has inspired curiosity and controversy for decades.
15 Must-see Mountain Ranges in the U.S.
science.howstuffworks.com/environmental/earth/mountain-ranges-in-the-us.htm
From the Arctic Circle to the warm climes of the southern border, the mountain ranges in the U.S. offer some of the most stunning, geologically diverse landscapes in North America.