There was a moment in 2013 that felt like a miracle. The population dropped to a terrifying 35 fish. That’s fewer people than at a small family reunion.
But then, something amazing happened. Conservationists threw a lifeline—literally. They built an exact replica of the fish’s habitat in a lab, a “backup pool” just in case disaster struck.
Today, the numbers have bounced back to a few hundred. It’s not a victory parade, but it’s a comeback story that makes you want to cheer. It proves that even the tiniest, most isolated creature is worth fighting for.
A Fish Named “Famous”
Let’s compare this to something you do know. The coelacanth was thought to be extinct for 65 million years—until a fisherman caught one in 1938. That’s like finding a living dinosaur in your backyard shed.
11 Unbelievably Rare Fish Species Found in the World’s Most Isolated
Or take the Mekong giant catfish, a gentle giant that can weigh as much as a grizzly bear. You won’t find it in a pet store either; you’d need a fishing trawler.
But the Devil’s Hole pupfish is even rarer than these famous freaks. It’s so rare that its address is a government secret. Rangers literally patrol the cave to keep tourists from accidentally stepping on it.