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66 million years ago an asteroid longer than Mount Everest is tall hurtled toward the Earth crashing into the Gulf of Mexico. More than 75% of plant and animal species, including the dinosaurs, vanished. it took over 4 million years for life to flourish once again, but the environment was altered forever. So scientists were

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Gooooood morning, John, it’s Tuesdaaaaaay! June 19th. [singing] I’m back in the basement agaaaain. I’m back in the basement again! I’m mostly underground, and you can’t hear a sound ’cause I’m back in the basement again! It’s comfortable here. I made a little nest for myself where I can nuzzle up and come down here

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Spiders don’t just use their silk threads to build webs. They also spin sails to catch the breeze, sometimes flying hundreds of kilometers. This behavior — called ballooning — has helped spiders disperse all over the globe. To find out more about how spiders launch, scientists in Germany collected some large, orb-web-spinning crab spiders in

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there are 7.5 billion people on the planet right now and by the end of the century that could be 11 billion of us that's more homes to heat light and cool more devices to build more factories to power more cars to run more planes to fly it all takes energy which leave society

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