Scientific American Salamander’s Genome Guards Secrets of Limb Regrowth In James Monaghan’s lab at Northeastern University in Boston, Johanna Farkas, a postdoc, handed me a pair of what looked like sunglasses. We were facing shelves lined with dozens of axolotl tanks; the lab keeps about 400 or 500 animals. (“There might be more in this room than there are in the wild now,” Farkas said.) The […]