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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.

Periwinkle, Myrtle

home.howstuffworks.com/periwinkle-myrtle.htm

Periwinkle is easy to care for and grow in full sun to partial shade. Its blue flowers bloom early in spring. Learn more at HowStuffWorks.

Why Mockingbirds Mock

animals.howstuffworks.com/birds/why-mockingbirds-mock.htm

What benefit does one bird get from copying another bird's calls?

How did language evolve?

science.howstuffworks.com/life/evolution/language-evolve.htm

Let's assume that long ago Homo sapiens communicated by grunting at one another. How and when did all those grunting sounds evolve into a verb tenses, clauses and proper nouns?

This Horse Breed Identification Quiz Is Really Hard, So We'll Be Impressed If You Even Get 4 Right

play.howstuffworks.com/quiz/this-horse-breed-identification-quiz-is-really-hard-so-well-be-impressed-if-you-even-get-4-right

Have you been described as a horse person? Do you find that you know more about horses than most people? If you know the difference between a quarter horse and a thoroughbred, test your knowledge with this quiz!

New Guinea Impatiens

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New Guinea impatiens is a type of multicolor annual flower. Learn about growing, propagating, and using New Guinea impatiens at HowStuffWorks.

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.

Can Lettuce Water Really Help You Sleep?

health.howstuffworks.com/wellness/natural-medicine/home-remedies/lettuce-water.htm

A TikTok trend is pretty harmless, but can lettuce leaves steeped in water really help your insomnia?

What's the Difference Between a Newt and Salamander?

animals.howstuffworks.com/amphibians/newt.htm

These two amphibians look similar and are often confused for each other. So how many traits do they share?

Types of Bromeliads

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Bromeliads are perennial plants that have one seed leaf. Bromeliads commonly grow in the American tropics, and a majority of the species are found in Brazil. These tough, long-lived plants grow well indoors, too. Learn more about types of Bromeliads.

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