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Drought Caused These 6 Famous Waterfalls to Dry Up
science.howstuffworks.com/environmental/earth/geology/dry-waterfalls.htm
Waterfalls are mainly reliant on precipitation to keep flowing. Here are six famous waterfalls that slowed to a trickle when drought set in.
PCBs Are Killing Killer Whales
animals.howstuffworks.com/mammals/pcbs-are-killing-killer-whales.htm
A new study paints a grave future for the killer whale, all because of now-banned PCBs. HowStuffWorks looks at the science behind PCBs killing orcas.
Are redheads going extinct?
science.howstuffworks.com/life/genetic/redhead-extinction.htm
Redhead extinction is the idea that the recessive gene that causes red hair will eventually die out. Read about the theories behind redhead extinction.
African Wild Dog: Not the Hyena You Think It Is
animals.howstuffworks.com/endangered-species/african-wild-dog.htm
The African wild dog is one of the world's rarest mammals. At a glance, people unfamiliar with the species misidentify it as a hyena. While both animals are spotted, the African wild dog has round ears and longer legs than hyenas.
Can You Identify These Big Cats?
play.howstuffworks.com/quiz/can-you-identify-these-big-cats
There are plenty of different big cats found throughout the world, but how well do you know them? Take this quiz if you believe that you can correctly identify them all!
The Easiest Language to Learn for Native English Speakers
people.howstuffworks.com/easiest-language-to-learn.htm
What is the easiest language to learn as a second language? The answer will vary depending on your native language. Learning a new language can open up opportunities, from connecting with people in your community or embracing your own culture to being able to live and work abroad.
Could a fungus cause the extinction of bats?
animals.howstuffworks.com/mammals/fungus-cause-bat-extinction.htm
The world could be facing a possible bat extinction due to an odd plague. Learn how a possible bat extinction could drastically affect the ecosystem.
Who Rides Passenger Trains in the U.S. These Days?
science.howstuffworks.com/transport/engines-equipment/who-rides-u.s.-passenger-trains-these-days.htm
In 2015, the U.S. population numbered 320 million, but less than 10 percent of those people rode the rails. So who does?
How Did Constantinople Become Istanbul?
history.howstuffworks.com/european-history/constantinople.htm
Istanbul, Turkey, once known as Constantinople, has a long history as the capital of the Ottoman Empire, and as the center of cultural activity in Eurasia.
Skim Milk: Natural Weight-Loss Foods
Milk is nicknamed "nature's most perfect food." Learn about skim milk, weight loss, high-protein foods, and healthy diets.