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Planet Green
Do you know how to tell if a plant is poisonous?
Spinach is a powerhouse of nutrients -- 12 recipes to elevate spinach to best-friend status
Great news! Rescued tigers bask in new forever home
Mini swiss chard, spinach and ricotta frittatas recipe
Night skiing is even cooler if you're covered in LEDs
12 tips for kicking the refined sugar habit
10 eerie destinations to visit before Halloween
Scientists uncover how colorful pygmy seahorses camouflage themselves
This Impala runs on sewage, beer and food scraps
The first Mars mission team should be all women
Fabien Cousteau talks about his record-breaking 31-day mission living underwater
Have you ever wanted to try winter camping? Here's how to get started!…
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How about some waffle iron potato tots for breakfast?
How much are plants helping us fight climate change?
Colder weather brings a bounty of root vegetables -- try oven-baked rutabaga fries [vegan]
Photographers snap Siding Spring comet buzzing Mars
Make a shake flashlight out of a cardboard tube #DIY
How to see the Orionid meteor shower at its peak
9 young inventors who may just save the world
Would you use this? Air Umbrella can keep you dry with an invisible 'force field'
New tracking breakthrough to hold frackers responsible for pollution
CDC updates Ebola guidelines for health care workers
Two-thirds of all predatory fish have disappeared in the last century
6 incredible treasures found with a metal detector
10 super creatures trying to take over the world
Here's our list of America's best cities — some big, some small — for exploring the outdoors
Who's your next pet? New "facial recognition" helps pick out the perfect companion!
'Turnip For What?' Michelle Obama makes Vine video gold by dancing with her veggies
Need inspiration for your dog or cat's outfit this Halloween? Top 10 costumes for pets
Use chemistry life hacks to solve everyday problems
GAH! Puppy-sized spider surprises and scares scientist
To chill or not to chill? 15 commonly refrigerated foods that don't need to be
Is it a solar cell? A rechargeable battery? It's both!
5 Halloween tips for parents of kids with autism
8 delicious ways to get more broccoli on the menu
How to make kefir (and what it is, if you don't know)
Move over, Grumpy Cat. There's a new cranky cat on the Web
Photographer gives up everything to document the most remote areas of Australia
Endangered Hawaiian monk seals are bouncing back
Check out these 11 once-bustling mining outposts that have long since been abandoned
The same gene that makes some people color-blind might give others a boost in perception
Watch 40,000 still images blend together to show how a forest changes over a year
Hipster redemption? How local, made-in-USA, artisan-focused entrepreneurs are reviving American manufacturing
Strange things happen when roofs touch the ground