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How Saber-tooth Cats Worked
science.howstuffworks.com/environmental/earth/geology/saber-tooth-cat.htm
Saber-tooth cats are perhaps the most well-known extinct felines. Learn about saber-tooth cats and the behavior patterns of saber-tooth cats.
Will cars ever run on carbon dioxide, or is that marketing hype?
auto.howstuffworks.com/fuel-efficiency/alternative-fuels/car-run-carbon-dioxide.htm
Will cars ever run on carbon dioxide? Keep reading to discover if cars will ever run on carbon dioxide or if it is just marketing hype.
Are there CO2 emissions from natural gas?
science.howstuffworks.com/environmental/energy/emissions-natural-gas.htm
Until recently, natural gas was thought of as one of the cleanest fossil fuels. Yet new studies say it may be worse for the ozone layer than coal -- a fuel well-known for its harmful emissions.
How Pterosaurs Worked
animals.howstuffworks.com/extinct-animals/pterosaurs.htm
They were creatures of the air, but they aren't part of the avian family tree - and don't call them dinosaurs. What was life like for the pterosaurs, and what has sparked renewed interest in these flying reptiles?
93% of People Can't Crush This General Science Knowledge Quiz. Can You?
play.howstuffworks.com/quiz/93-people-cant-crush-this-general-science-knowledge-quiz-can-you
Science may not have been everyone's favorite subject in high school, but many of these facts are common knowledge. You're a true nerd if you can guess them all.
How Carbon Tax Works
science.howstuffworks.com/environmental/green-science/carbon-tax.htm
A carbon tax is one of two market-based options that focus on lowering harmful emissions. Learn about the carbon tax and how a carbon tax can lower emissions.
Jaws and Claws: Alligators Eat Small Sharks More Often Than We Thought
animals.howstuffworks.com/marine-life/alligators-eat-small-sharks-more-often-than-thought.htm
HowStuffWorks reports on a scientific team found evidence that alligators do eat small sharks.
Why do people collect shark teeth?
animals.howstuffworks.com/fish/sharks/shark-teeth.htm
Collecting shark teeth is a hobby for many people, but why do we do it? Learn why collecting shark teeth is like gathering up pieces of history.
Grassoline: Can we fuel cars with grass?
auto.howstuffworks.com/fuel-efficiency/alternative-fuels/grassoline.htm
Grassoline for fuel is a concept that is under development in the ongoing search for an alternative to oil. Learn about the concept of grassoline.
How Flex-Fuel Vehicles Work
auto.howstuffworks.com/fuel-efficiency/fuel-saving-devices/flex-fuel-vehicle.htm
Do you know How Flex-fuel Vehicles Work? Keep reading to learn about flex-fuel and discover how flex-fuel vehicles work.