Search Results | human population
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What Are the World's Smartest Pets and Animals?
animals.howstuffworks.com/animal-facts/smartest-pets.htm
If you think dog and cats are the world's smartest pets, you're right. But there are others too. Which smart animals top the list?
The Biggest Frog in the World (Plus 11 Massive Contenders)
animals.howstuffworks.com/amphibians/biggest-frog-in-the-world.htm
You might think frogs are small, croaky critters, but the biggest frog in the world could surprise you. Some amphibians grow to sizes that rival house pets. In this list, we're leaping into the world of giant frogs, examining the species that top the charts in length and weight.
How soon will we be able to create a moon base?
science.howstuffworks.com/moon-base.htm
A moon base could allow us to further explore the solar system. Learn about a moon base and find out how soon we will be able to construct a moon base.
Will a drought affect the price of ethanol?
auto.howstuffworks.com/fuel-efficiency/fuel-consumption/drought-affect-price-of-ethanol.htm
Many scientists fear the many ways that drought would affect the price of ethanol. Learn about ways that drought would affect the price of ethanol here.
Steppe: A Civilization-altering Biome Most People Can't Name
science.howstuffworks.com/environmental/earth/steppe.htm
Spanning thousands of miles across the heart of Asia and Eastern Europe, the steppe is one of Earth's most expansive and ecologically important biomes. These vast, flat grassy plains stretch from Hungary in the west to Mongolia and northern China in the east, forming what is known as the Eurasian Steppe.
How Bug Zappers Work
home.howstuffworks.com/bug-zapper.htm
Bug zappers can help keep your backyard free of pesky insects. Find out how bug zappers kill insects and take a look at the inside of a bug zapper.
Can You Identify These Lizard Species?
play.howstuffworks.com/quiz/can-you-identify-these-lizard-species
We may not have dinosaurs in the world anymore but we do have lizards. Lots and lots of lizards! Let's see you flex your herpetology muscles and name as many of these species as you can!
What If Alcohol Didn't Exist?
science.howstuffworks.com/science-vs-myth/what-if/what-if-alcohol-didn-t-exist.htm
Our early ancestors, enjoying the effects of rotten fruit, had stumbled onto something big. How did alcohol serve as a nutrition source and, some believe, help motivate hunters to take up farming?
Nematodes: Do We Still Need to Worry About Roundworms and Bare Feet?
health.howstuffworks.com/diseases-conditions/rare/nematodes.htm
When you were a kid, your mom probably told you not to go around barefoot because you could get worms. But are nematodes still a problem today?
The World's Most Dangerous Bird and 9 Runners-up
animals.howstuffworks.com/birds/most-dangerous-bird.htm
The most dangerous bird species are also some of the most beautiful. These seemingly innocent creatures can pack a punch — or peck — that you definitely want to avoid.