Search Results | human population
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What Is Alcohol and What Does It Do to the Human Body?
science.howstuffworks.com/alcohol.htm
More than 2.3 billion people across the globe drink alcohol, but most don't consider it a drug. But if you've ever seen someone who's had too much, you know alcohol has profound effects on the mind and body.
Pacu Fish: The Piranha Cousin With Human-like Teeth
animals.howstuffworks.com/fish/pacu-fish.htm
In 2023, 11-year-old Charlie Clinton from Oklahoma made headlines by catching a pacu - a South American fish known for its human-like teeth - in a pond behind his house, far from its native Amazon habitat.
Can you build a better chair?
science.howstuffworks.com/innovation/science-questions/build-a-better-chair.htm
No really, can you? Sure, there are lots of chairs out there. Some rock. Some roll. Some recline. Some remain so crazy modern that we're afraid to direct our keisters onto their serious coolness. How you would change this staple of sedentary life?
Are all blood types needed for for donation?
health.howstuffworks.com/human-body/systems/circulatory/question593.htm
I would like to donate blood and keep hearing about which blood types are needed most. How do human blood types work?
The Hippopotamus Is Social in Water, Solitary on Land
animals.howstuffworks.com/mammals/hippopotamus.htm
Did you know the word "hippopotamus" comes from the ancient Greek for "river horse"? But don't let that fool you; this big, lumbering mammal is anything but a horse. In fact, it's one of the most powerful animals living in Sub-Saharan Africa today.
Coyote vs. Wolf: Differences in Size, Habitat and Behavior
animals.howstuffworks.com/mammals/coyote-vs-wolf.htm
Learn how to identify coyote vs. wolf tracks, where you can expect to find the species and how their behaviors differ.
Real Life 'Jurassic Park'? Scientists Work to Bring Back Extinct Thylacine
animals.howstuffworks.com/extinct-animals/bring-back-extinct-thylacine-news.htm
Bringing a species back from extinction might not be the stuff of sci-fi any longer.
When Does an Epidemic Become a Pandemic?
health.howstuffworks.com/diseases-conditions/infectious/pandemic.htm
The World Health Organization just declared the coronavirus a full-blown pandemic. What does that even mean, and how is that different from an epidemic?
How to Use DNA Testing for Genealogy Research
people.howstuffworks.com/culture-traditions/genealogy/use-dna-testing-genealogy-research.htm
Using DNA for genealogy research is becoming more commonplace. Visit HowStuffWorks to learn about using DNA for genealogy research.
Where did SARS come from?
health.howstuffworks.com/diseases-conditions/infectious/sars-come-from.htm
Where did SARS come from? Visit HowStuffWorks to learn more about the origins of SARS from this article.