Secrets of Earth: An Audio Nature Documentary

The oldest desert on Earth receives less than half an inch of rain per year. And yet, 180 days a year, it gets something else: fog. A thick, cold, Atlantic fog that rolls in from the Benguela Current before dawn and burns off by mid-morning.

That wi... more

We've had it wrong. The lion is not a symbol of individual strength. It is a symbol of collective engineering — and the individual lion, stripped of its pride, is one of the least formidable large cats on the savannah.

In this episode, we take the p... more

Somewhere in the dry woodland of Mozambique, a small brown bird is looking for a human. Not to flee from one. Not to steal from one. To work with one.

The Greater Honeyguide knows where the bees' nest is. It knows how to lead. What it cannot do is s... more

Six tons. Moving in total silence.

That's the first secret of the African Elephant — and it's the one that sets up everything else. Because an animal that can cross a field of dry leaves without making a sound isn't just large. It is engineered, fro... more

This is as far down as we go.

Nearly seven miles below the surface of the Pacific Ocean, in a place named after the god of the underworld, lies the deepest point on Earth. The pressure at the bottom of Challenger Deep is more than 1,000 times what y... more

It grows up to 18 inches in a single day. It reaches 100 feet tall with no wood, no roots, and no rigid structure — held upright by thousands of tiny gas-filled balloons and anchored to the rock below by a grip stronger than its own stem. And it can ... more

In March 2005, a submersible gliding along the Pacific-Antarctic Ridge — 1,500 kilometers south of Easter Island, 2,200 meters below the surface — found something crawling across volcanic rock near a hydrothermal vent. It was pale white, roughly six ... more

They were once called Devil Fish — massive, dark shadows that sailors believed could drag ships to the bottom of the sea. The truth is far stranger, and far more beautiful.

In this episode, we follow the Giant Oceanic Manta Ray into the open blue to... more