The axolotl may look cartoonishly harmless, but beneath its frilly gills lies one of evolution’s most astonishing survival abilities: functional brain regeneration.

Pollution and other man-made ills weigh heavily on Mexico's axolotl. Its population in the wild has fallen by something like 99% in the past three decades, one expert said. Yet the axolotl has never ...

The axolotl, a tailed amphibian, is a marvel of evolution. It can regenerate injured body parts and is exceptionally long-lived. However, the axolotl is only found in Mexico, and its habitat is ...

Native to the lakes of Mexico City, the axolotl stays in the water its whole life, swimming with a tail fin and breathing through frilly external gills. It’s nearly extinct in the wild, but survives ...