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What is the dental formula for deciduous teeth?
health.howstuffworks.com/wellness/oral-care/kids/dental-formula-for-deciduous-teeth.htm
Dental formulas may seem rather complicated, but they make sense if you know what you're looking for. Learn how to understand dental formulas for teeth.
The Smallest Animal in the World Weighs Less Than 1 Milligram
animals.howstuffworks.com/animal-facts/smallest-animal-in-the-world.htm
The natural world is home to some incredibly tiny creatures. From miniature mammals to tiny amphibians, many of the smallest animals in the world weigh less than a grape and are smaller than an average 5-year-old's hand.
Amazing Animals: Great White Shark Quiz
play.howstuffworks.com/quiz/great-white-shark-quiz
They are the most notorious species of shark, boasting 3,000 jagged teeth and a bite that kills. See how much you know with this quiz.
Narwhal Echolocation Abilities Exceed Those of Any Other Animal, Study Finds
animals.howstuffworks.com/mammals/narwhal-echolocation-abilities.htm
What are the echolocation abilities of a narwhal? Learn more about a new study on narwhal echolocation in this HowStuffWorks Now article.
Have doctors ever found teeth in a vagina?
health.howstuffworks.com/human-body/parts/teeth-in-vagina.htm
Vagina teeth are the stuff of legends - but is it possible for a woman to have teeth in her vagina? The answer might surprise you.
Do You Know the 35 Hardest Plurals in the English Language?
play.howstuffworks.com/quiz/do-you-know-the-35-hardest-plurals-the-english-language
Just add an "s" and a singular noun becomes a plural, right? Although for the most part, just adding an "s" holds true, but there are exceptions. Do you know them all?
Iguanodon Skeletons Are the Most Complete of Any Dinosaur
animals.howstuffworks.com/dinosaurs/iguanodon.htm
Hey there, dinosaur fans! Let’s talk about one of the most fascinating extinct animals of all time: Iguanodon! Discovered in the early 19th century, Iguanodon was one of the very first dinosaurs ever named, and it played a huge role in kicking off the field of paleontology. With its iguana tooth-like structures and unique anatomy, this medium-sized herbivorous dinosaur became an instant sensation for scientists and dinosaur lovers alike.
How Odometers Work
auto.howstuffworks.com/car-driving-safety/safety-regulatory-devices/odometer.htm
Mechanical odometers have been counting the miles for centuries. Although they are a dying breed, they are incredibly cool inside. Learn how this simple device tracks distance and find out about digital odometers.
Is gingivitis deadly?
health.howstuffworks.com/wellness/oral-care/problems/is-gingivitis-deadly.htm
Is gingivitis deadly? Take a look as we break down the dangers of plaque and find out if gingivitis is deadly.
How Often Should You Replace Your Toothbrush?
health.howstuffworks.com/wellness/oral-care/products/replace-toothbrush.htm
When was the last time you replaced your toothbrush? And how often should you?