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Human Penis Bone Disappeared With Rise of Monogamy, Succinct Sex
science.howstuffworks.com/environmental/earth/archaeology/human-penis-bone-baculum-monogamy.htm
Most mammals have a penis bone called a baculum, but humans don't. A new study sheds light on the history of the baculum, and why ours is missing.
'Fire Rainbows' and 'Sun Dogs': Weird Weather in the Smartphone Age
Smartphone cameras enable us to take striking pictures of strange atmospheric phenomena-though we don't always know what we're seeing.
What is the future of family medicine?
health.howstuffworks.com/medicine/healthcare/future-family-medicine.htm
Family medicine isn't just for kids and their parents. Learn about the future of family medicine and how it is changing with the times.
Are today's manual transmission cars more efficient than automatics?
Manual transmissions have historically boasted better fuel economy. Find out if manual transmission cars are still more efficient than today's automatics.
Why No Fish Wants a Tongue-eating Parasitic Louse in its Mouth
animals.howstuffworks.com/marine-life/parasitic-tongue-eating-louse.htm
Cymothoa exigua will make you feel very glad you're not a fish.
River Otter vs. Sea Otter Size, Fur Density and Food Preferences
animals.howstuffworks.com/mammals/river-otter-vs-sea-otter.htm
You might think that all aquatic otters must be the same. But did you know that there are major river otter vs. sea otter differences?
Where Are Tornadoes Most Common Around the World?
science.howstuffworks.com/nature/natural-disasters/where-are-tornadoes-most-common.htm
If a student asks you, "Where are tornadoes most common?" you may be able to answer their question in the scope of the U.S., but the global answer depends on geography, climate, and the collision of air masses.
Siberian Tiger vs. Bengal Tiger: A Showdown of Big Cats
animals.howstuffworks.com/mammals/siberian-tiger-vs-bengal-tiger.htm
Step aside, heavyweight champions of the animal world! There’s a Siberian tiger vs. Bengal tiger showdown that deserves center stage.
14 Least Visited National Parks in the United States
history.howstuffworks.com/american-history/least-visited-national-parks.htm
Most people flock to Yellowstone, Yosemite, or the Grand Canyon, but the least visited national parks offer something just as remarkable: solitude.
How Many Billionaires Are in the U.S.? More Than Any Other Nation
money.howstuffworks.com/how-many-billionaires-in-the-us.htm
Exactly how many billionaires are in the U.S. today? According to the Forbes annual list, 813 billionaires call the United States home as of 2024. That makes the U.S. the country with the most billionaires by a wide margin. Together, they hold a combined wealth of 5.7 trillion dollars.