Axolotls are fully aquatic and do not undergo metamorphosis like other salamanders. They remain in their larval stage throughout their entire lives, which is known as neoteny. This means that they retain juvenile characteristics, such as external gills, throughout their adult lives.
Axolotls are typically 6-12 inches long, but some can grow up to 18 inches or more. They have long, cylindrical bodies with webbed feet and smooth, slimy skin. They come in a variety of colors, including black, white, brown, and albino.
Axolotls are carnivores and their diet consists mainly of small invertebrates, such as worms, insect larvae, and tadpoles. They have well-developed eyes and nostrils to help them find prey.
Due to their unique appearance and biology, axolotls are widely appreciated by scientists and hobbyists alike. They are an important research subject for studying regeneration and development. In recent years, they have also become popular in the pet trade as an exotic pet. However, it's important to note that specialized care is needed to keep axolotls healthy.