There's plenty of air in the tiny spaces between grains of sand; the problem for sand-burrowing animals is how to get that air into their lungs while keeping the sand out ...

Star dunes are pyramid-shaped sand formations with ‘arms’ that stretch out across the desert – giving them ... energy trapped inside the dune’s grains of sand – to determine Lala Lallia ...

And desert sand, like ocean waves, rolls and bounces. And these self-organizing individual grains create ever-shifting wave-shaped ripples on the dune’s surface. And human hands form images that ...

World News Today points out that the granular quality of the sand, variably small ... Singing dunes are exclusive to desert environments as the low humidity enhances grain friction.