You’re listening to Good News from Planet Earth.

For this Spooky Season of Good News, we’ve explored haunted forests and rotting pumpkins. Now, we’re going deeper — into the caves. It’s cold, damp, and dark. Drips echo in the silence, and somewhere beneath your feet, tiny pale creatures crawl through the soil. They look like something from a nightmare — but their story is surprisingly hopeful.

Meet the Coffin Cave mold beetle, one of the rarest insects on Earth. Smaller than a grain of rice, ghost-white, and eyeless, it lives deep in the limestone caves of central Texas. It feeds on tiny bits of organic matter — fungal threads, leaf litter, and droppings from other cave creatures — playing a vital role in the underground food web.

These karst caves are delicate ecosystems, home to specialized species like eyeless spiders, crustaceans, and microbes that survive only in constant darkness and stable temperatures. Even minor disruptions — filling entrances, diverting groundwater, or introducing pollutants — can threaten the entire system.

In the late 20th century, rapid suburban expansion near Austin destroyed cave entrances and changed water flow. By the 1990s, scientists feared the Coffin Cave mold beetle could vanish. It was listed on the U.S. Endangered Species List in 1988, a sign of how precarious its existence had become.

But conservation work made a difference. Today, key caves are protected, developers collaborate with conservationists, and preserves ensure karst ecosystems and groundwater remain intact. Ongoing monitoring shows the beetle is still hanging on — a reminder that even the smallest, strangest creatures matter.

Why care about a sightless beetle most people will never see? Because these cave ecosystems filter and store groundwater, recycle nutrients, and keep the land and water aboveground healthy. Protecting these tiny guardians ensures the hidden systems that sustain life remain strong.

So yes, the Coffin Cave mold beetle is pale, eyeless, and lives in darkness. It may be spooky or creepy at first glance — but it’s also a quiet, essential guardian of the underworld, keeping the planet alive in ways most of us never see.

This has been another story from our Spooky Season of Good News. Share this episode with someone who loves the hidden wonders of nature — and celebrate the tiniest heroes beneath our feet.

Narrated by Anne Cloud from Voiceover for the Planet

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Good News from Planet Earth is brought to you by Voiceover for the Planet, proud members of 1% for the Planet.

Produced by Ally Murphy and Anne Cloud

Sound Designed and Mixed by Brandon Perry at Sound Nectar Studios

If you'd like a member of Voiceover for the Planet to narrate your project, email [email protected]