Just tons of long webs floating in the air and anchoring on everything:plant and not. What is making them? Harmful to trees and plants? It's not the time of year for web worms or caterpillars.

That's according to a new study in Nature Ecology & Evolution that reveals the power of DNA, vacuumed up from the air, which can track everything from elusive bobcats to illicit drugs.

The white balls of fluff floating in the air provide all the evidence you need. Those are the seeds of the cottonwood tree, which are shed every year around this time. “It’s kind of interesting.

ST. PETERSBURG, Fla. — Every spring, little green inchworms start to appear, seemingly floating in the air beneath the trees. They don’t live in the sky, but drop from the trees “when ...

Pasteur was on a hunt, he later wrote, for “the floating germs of the air.” Now, 165 years later, scientists around the world hunt for floating germs.

DNA floating in the air over Dublin revealed everything from wildlife to illegal drugs. Scientists used air filters to collect eDNA, showing that we can track species and pathogens invisibly ...