What’s native only to Mexico’s Lake Xochimilco, comes in rainbow colors and has a permanently thrilled expression? An axolotl, of course! It’s a species of salamander with distinctive exterior gills ...

Combining the kawaii appearance of a Pokémon character with the real-world appeal of cuddly creatures such as bunnies and kittens, axolotls are the breakout cuties of the past few years. The ...