Search Results | human population
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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!
Did climate change create a mysterious civilization 5,000 years ago?
science.howstuffworks.com/environmental/green-science/climate-change-civilization.htm
Climate change can effect civilization, a phenomenon demonstrated by the mound builders of Peru. Learn how climate change can effect civilization.
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?
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?
Can You Recognize All of These Hoofed Animals?
play.howstuffworks.com/quiz/can-you-recognize-all-of-these-hoofed-animals
The world is full of ungulates, those hoofed creatures running around with their clip-cloppy hard-toed feet. How many do you think you can identify? Saddle up and let's see!
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.
Will a Coyote Kill My Dog or Cat?
animals.howstuffworks.com/mammals/will-coyote-kill-my-dog-or-cat.htm
Coyotes are becoming increasingly ubiquitous in cities and suburbs. HowStuffWorks stalks the truth about these wily creatures.
10 Most Dangerous Countries in the World
people.howstuffworks.com/worlds-most-dangerous-countries-news.htm
The Global Peace Index ranks 172 independent states and territories according to their levels of peacefulness. Those that came in last may - or may not - surprise you.
Does everyone have claustrophobia?
health.howstuffworks.com/mental-health/mental-disorders/claustrophobia.htm
Claustrophobia is the term for fear of enclosed spaces -- it's physical and psychological. Read about claustrophobia and some common claustrophobic symptoms.