In its dark, watery home, the olm takes nearly 16 years to reach maturity and even then, only reproduces every 12 years. But for a small animal, their maximum lifespan is incredible — roughly ...

The olm, also known as the human fish, is an endangered species that has developed unique characteristics in response to its extreme living conditions. It can fast for ten years and live for 100 ...

With its flesh-colored skin and flat head framed by fluffy gills, the cave-dwelling olm looks very similar to the axolotl. Yet, make no mistake: unlike the perpetually smiling axolotl, these ...