Mysteriously moving stones in Death Valley leave whimsical trails. How do they do that?
Holes in the canopy mean opportunity for new trees, but only if they are already waiting in the wings
A Smithsonian biologist tracks the protein-rich nuts to understand their role in the Amazonian forest
As vessels around the world drag nets and dredges across the seabed, they slowly destroy the biome
Everyone talks about the weather the people at the Weather Channel live it 24 hours a day
Americans take lawn care very seriously, spending billions to keep their perfectly clipped grass green and absolutely weed free
It took two millennia to get the one we now use; we owe a lot to the sun and moon, to Caesar, Pope Gregory and, oh yes, the Earl of Chesterfield
We can't live without it. Salt runs through our language, our history, and our veins
The National Museum of Natural History aims to become a hub for science education
The pioneering naturalist Constantine Rafinesque did just about everything, and he always did it his way
Our names for people who respect the environment should be as varied as the ways we see it
Ski resorts have snowmaking down to a science – now sometimes the real stuff gets in the way
Out in the Atlantic, strange creatures make their home among seaweed in a floating lens of warm water
Those who think some of our rivers are a dammed shame argue for the structures to come down
In one spot on the continental shelf, scientists aim to understand all that happens, 24 hours a day
The study of how plants moved north after the last ice age could mean new directions for conservation
Climate scientists go with the floe
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