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Plants Can Defend Themselves by Making Caterpillars Turn Cannibal
science.howstuffworks.com/life/botany/tomato-plant-defense-caterpillar-cannibal.htm
How can plants defend themselves against insects? Learn more about a new tomato study in this HowStuffWorks article.
Plastic Numbers: Breaking Down Recycling Codes
science.howstuffworks.com/environmental/green-tech/sustainable/question217.htm
There are seven different numbers you might see on a plastic container. And each number has its own meaning.
Plastics Will Outpace Coal in U.S. Carbon Emissions, Study Shows
science.howstuffworks.com/environmental/conservation/issues/plastics-overtake-coal-news.htm
A new report released by Beyond Plastics suggests that plastics will release more greenhouse gas emissions than coal plants in the U.S. by 2030.
Platinum: What's So Special About the Shiny Metal?
science.howstuffworks.com/environmental/earth/geology/platinum.htm
This white-hot metal not only makes beautiful jewelry, it's coveted for industrial, medical and military purposes too.
Ploonets: When Moons Become Planets
science.howstuffworks.com/ploonets.htm
Moons of giant planets outside the solar system may be pushed out of their orbits and begin to circle their stars separately. HowStuffWorks takes a look.
Pluto Is Just One of Millions of Objects in the Kuiper Belt
science.howstuffworks.com/kuiper-belt.htm
The Kuiper Belt is a ring around the sun that's home to millions of comets, moons, dwarf planets and other celestial objects. How did they get there?
Pluto: Is It a Planet After All?
science.howstuffworks.com/pluto-is-it-planet-after-all.htm
Back in 2006, the International Astronomical Union decided to demote Pluto to the status of a dwarf planet. A historical study challenges that designation.
Poisonous Death Cap Mushroom Spreads Over North America
science.howstuffworks.com/life/biology-fields/poisonous-death-cap-mushroom.htm
Amanita phalloides is non-native to the North American continent, introduced to California from Europe, and rapidly spreading.
Polaris Star: How to Spot the North Star in the Night Sky
science.howstuffworks.com/north-star.htm
Polaris, also known as the North Star, is almost exactly over the celestial North Pole, making it extremely useful for navigation (and for making wishes on, as well).
Pole Shift: Why Does the North Pole Move?
science.howstuffworks.com/environmental/earth/geophysics/question782.htm
The North Pole and why it moves are explained in this article. Learn about the North Pole.