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Ancient Shark with ‘Spaceship-Shaped’ Teeth Discovered

Remember that popular 1980’s video game Galaga? Little triangle shaped space ships would fly around the screen. Laser cannons would fire out of the top of the ships, laying waste to aliens that dropped down from the top of the screen. Now imagine finding the fossilized teeth of a freshwater shark that lived 67 million years ago in the forests, swamps and winding rivers of what is now South Dakota. Amazingly, those teeth look like the Galaga spaceships! So, if you’re a scientist, what would you call your ancient shark discovery? That’s right. Galagadon.

Here’s Why Most Recipes Tell You to Bake at 350 Degrees

If you have done any baking at all, chances are you already have the first line of the recipe memorized: preheat oven to 350 degrees. Yes, it’s a fairly nice round number. Yes, it’s also pretty easy to turn the temperature knob to that setting (not too much twisting). And yes, if you have an oven with a digital setting there aren’t too many keypad buttons to push. But that’s not the reason 350 degrees seems to be cooking’s magic number. It’s the chemistry.

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