You may have seen axolotls—an amphibian in the salamander family with a permanent smile and pink, feathery gills—in a pet store or as a plushie in a window, but the endearing animal's popularity seems ...

The only aquatic creature cuter than a sea turtle is an axolotl (Ambystoma mexicanum). These adorable amphibians have feathery gills and a flattened head — they are just so squishy and cute! Axolotls ...