Add Yahoo as a preferred source to see more of our stories on Google. Jun. 10—If you think you've been seeing an invasion of helicopters this year, you're not imagining things. Southern Minnesota ...

Add Yahoo as a preferred source to see more of our stories on Google. Winged seeds called samaras grow on maple trees. These are seeds from the Japanese maple, _Acer palmatum_. AlessandroZocc/iStock ...

PASADENA, Calif.—The twirling seeds of maple trees spin like miniature helicopters as they fall to the ground. Because the seeds descend slowly as they swirl, they can be carried aloft by the wind and ...

SIOUX FALLS, S.D. (KELO) – You may have noticed something different about the maple tree seeds this year: they’re pink. In the past few weeks, maple trees have been dropping samaras, or more commonly ...

LATE 1990S, IS ACTUALLY A SIMPLE CONCEPT. IT’S IMITATING NATURE TO SOLVE PROBLEMS OR INVENTING SOMETHING, USING NATURE AS INSPIRATION. NATURE IS THE PATHWAY TO SCIENCE AND INVENTION. HERE AT THE ...

Like helicoptering maple seeds, tiny new fliers whirl gracefully as they glide. The miniature aircraft, which can be made as small as a grain of sand, could be dispersed by air over long distances.

You may have noticed lots of those helicopter maple tree seeds filling up rain gutters or piling up on the sidewalk this year. State Forester Tivon Feeley says the large amount of seeds created a ...

Q. Last fall, I collected Japanese maple seeds from trees in the neighborhood and planted about 100 of them in small pots, left them out over the winter, and did not get a single sprout. Advice on how ...

COLLEGE PARK, Md.—Maple tree seeds (or samara fruit) and the spiraling pattern in which they glide to the ground have delighted children for ages and perplexed engineers for decades. Now aerospace ...

If you think you’ve been seeing an invasion of helicopters this year, you’re not imagining things. Southern Minnesota maple trees are producing a copious amount of seeds that flutter from their ...