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Are Frogs on the Brink of Extinction?
animals.howstuffworks.com/endangered-species/frog-extinction.htm
Frogs are like the canary in the coal mine for the state of the environment. HowstuffWorks looks at their endangered status.
What Kind of Water Snake Do You Spy in Your Local Pond?
animals.howstuffworks.com/snakes/water-snake.htm
Have you ever seen a snake in or near a river or pond? It was probably a water snake! These slithery swimmers are easy to spot anywhere the world gets a little wetter, particularly near freshwater.
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?
The Cougar Technically Isn't a 'Big Cat'
animals.howstuffworks.com/mammals/cougar.htm
The cougar, also known as Puma concolor, is one of the most adaptable and widespread cat species in the Americas. You can find this elusive predator, commonly referred to as a mountain lion or puma, across a vast range that extends from the southern tip of South America to the wilds of Canada.
Jane Goodall: A Global Face for Global Peace
science.howstuffworks.com/innovation/big-thinkers/jane-goodall-global-face-for-global-peace.htm
In her legendary 60-year career, Jane Goodall has made being an intrepid scientist, environmentalist, writer and teacher look easy.
Can You Get a Perfect Score on This Dangerous Animals Quiz?
play.howstuffworks.com/quiz/can-you-get-a-perfect-score-this-dangerous-animals-quiz
Look out! Think you have what it takes to ace this dangerous animals quiz? Try your luck now, and remember ... proceed with caution!
Can You Ace This Quiz About Ancient World History?
play.howstuffworks.com/quiz/can-you-ace-this-quiz-ancient-world-history
Long before the Internet and gas-sucking automobiles, human beings thrived all over the planet. As their empires rose and fell, they left behind intriguing evidence of their lives. What do you know about ancient world history?
10 Signs You May Be Sleep Deprived
health.howstuffworks.com/mental-health/sleep/disorders/10-signs-you-may-be-sleep-deprived.htm
Are you sleep deprived? About 45 percent of the world's population isn't getting enough sleep. See 10 signs you might be sleep deprived.
How Plague Works
science.howstuffworks.com/life/cellular-microscopic/plague.htm
You may be familiar with the medieval "Black Plague," but did you know that bouts of plague still break out today? Find out what causes an outbreak, why plague still exists and how the plague has influenced history.
7 Horned Snake Variations Inhabiting a Desert Near You
animals.howstuffworks.com/snakes/horned-snake.htm
If you see a horned snake, you'll understand how it got its name: They have unique "horns" near their eyes. These venomous snakes live in deserts and other dry environments, and their adaptations help them survive and hunt in harsh conditions.