Search Results | human population
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How can some of the world's oldest people also lead unhealthy lives?
health.howstuffworks.com/wellness/food-nutrition/diet-aging/oldest-people-unhealthy.htm
Some of the oldest people have oddly lead unhealthy lives. Learn why some people can smoke until they are 100 and how the oldest people get so old.
How Urban Planning Works
science.howstuffworks.com/environmental/green-science/urban-planning.htm
Urban planning works to design a city so that it can be used effectively by its people. Find out more about how urban planning works.
6 House Spider Species Hiding in the Corners of Your Home
animals.howstuffworks.com/insects/house-spider.htm
Spiders are some of the most common creatures we share our homes with. While they may seem scary at first, most house spider species are harmless and even helpful, keeping pest insects under control.
15 Animals That Start With 'S': From Sea Lions to Scarlet Macaws
animals.howstuffworks.com/animal-facts/animals-that-start-with-s.htm
The animal kingdom is full of incredible creatures, and today we’re focusing on animals that start with "S." Some of them thrive in the wild today, while others once roamed the Earth but are now gone forever.
Largest Horse Breed Holds World Record for Over 175 Years
animals.howstuffworks.com/animal-facts/largest-horse-breed.htm
The world's largest horse breed varieties have evolved in step with the humans who domesticated and cared for them. Each ancient breed of large horses was selected for specific traits; some large breeds of war horses were fearless companions in battle. In contrast, carriage horses and riding horses were prized for their elegant appearance and easygoing temperament.
What are the dangers of mercury exposure?
home.howstuffworks.com/home-improvement/household-safety/dangers-of-mercury-exposure.htm
What are the dangers of mercury exposure? Find out the dangers of mercury exposure, how to avoid them and how to tell if you've been exposed.
Lifelike Robo Pets Help Seniors Combat Loneliness
health.howstuffworks.com/mental-health/dementia/robotic-pets.htm
Robotic companion animals have been proven to reduce stress, anxiety and antipsychotic drug use among older people, especially those with with dementia.
What if everyone on Earth jumped at the same time?
science.howstuffworks.com/science-vs-myth/what-if/what-if-everyone-on-earth-jumped-at-same-time.htm
The Earth is a pretty stalwart planet, having survived billions of years of punishment at the hands of asteroids and other cosmic bodies. But could it withstand more than 7 billion people jumping up and down in unison? Do we even want to find out?
5 Black and Yellow Snake Species to Look Out For
animals.howstuffworks.com/snakes/black-and-yellow-snake.htm
The black and yellow snake is vibrant and eye-catching, and it's not just for show. In the animal kingdom, bright colors often serve as warnings to potential predators.
Was Lyme Disease Created as a Bioweapon?
science.howstuffworks.com/science-vs-myth/what-if/lyme-disease-bioweapon.htm
Maybe it's mistrust of the U.S. government and health-related industries, as well as Lyme's insidious nature, that makes this idea catnip for conspiracy theories. But what's the truth?