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7 Ugliest Bird Species: Evolutionary Qualities That Aren't So Pretty
animals.howstuffworks.com/birds/ugliest-bird.htm
Beauty is in the eye of the beholder, but in the bird world, some species seem designed to challenge that idea. These contenders for ugliest bird species sport bald heads, bare skin, and off-putting features that serve real evolutionary purposes.
Eye Color: Percentage of the World Population With Each Shade
science.howstuffworks.com/life/genetic/eye-color-percentage.htm
Understanding eye color percentage reveals how human genetics shapes the colors we see in the iris. The iris is the colored part of the eye, and its appearance depends largely on how much melanin pigment it contains.
3 (or 4) Countries That Start With R
history.howstuffworks.com/world-history/countries-that-start-with-r.htm
The countries that start with R make up a surprisingly short list in English, which is part of what makes the topic interesting.
Why do feet stink?
health.howstuffworks.com/skin-care/information/anatomy/question514.htm
Why do feet stink? Why do some people's feet smell worse than other people's? How can I get my feet to smell better?
The Goblin Shark Has an Odd Secret Weapon: Its Oily Liver
animals.howstuffworks.com/fish/sharks/goblin-shark.htm
How did the goblin shark score its haunting name? It has something to do with the goblin shark's visage. Find out more about the goblin shark.
What's so special about a dinosaur named Leonardo?
science.howstuffworks.com/environmental/earth/geology/dinosaur-leonardo.htm
What's so special about a dinosaur named Leonardo? It's a fully preserved dinosaur mummy. Learn what's so special about a dinosaur named Leonardo.
Horseradish: Herbal Remedies
health.howstuffworks.com/wellness/natural-medicine/herbal-remedies/horseradish-herbal-remedies.htm
Horseradish is more than a condiment. Learn how it's used in herbal remedies for sinus infections, and try a recipe for horseradish cranberry relish.
How Agroforestry Works
home.howstuffworks.com/lawn-garden/professional-landscaping/agroforestry.htm
Agroforestry promotes the integration of landscape with livestock. Learn more about agroforestry at HowStuffWorks.
Has Earth reached its carrying capacity?
science.howstuffworks.com/environmental/green-science/earth-carrying-capacity.htm
Carrying capacity is the idea that sustainability requires balance. Learn about carrying capacity and human population.
How the Aptera Hybrid Works
auto.howstuffworks.com/aptera-hybrid.htm
The Aptera Hybrid is a concept vehicle that aims to achieve 330 miles per gallon. Learn more about the amazing Aptera Hybrid concept vehicle.