Urodeles refer to a group of amphibians known for their unique characteristics and distinct features. They belong to the class Amphibia, order Caudata, and are commonly referred to as salamanders or newts. Urodeles are characterized by their lizard-like appearance, with elongated bodies, slender tails, and four limbs that are roughly equal in length. They can vary greatly in terms of size, from a few centimeters to several feet long, depending on the species.
One of the distinctive features of urodeles is their ability to undergo neoteny. Neoteny is a process in which individuals retain their juvenile characteristics throughout their adulthood, which is commonly observed in certain salamander species. This phenomenon results in the retention of external gills even in the adult stage, allowing them to respire in aquatic environments.
Urodeles are also known for their regenerative abilities, being able to regenerate various body parts, such as limbs, tails, and even parts of their internal organs. This remarkable regenerative capacity sets them apart from other vertebrate groups and has been a subject of intensive research in the field of regenerative medicine.
Urodeles exhibit a wide range of ecological preferences, with some species being strictly aquatic, others being terrestrial, and some even utilizing both habitats during different stages of their life cycle. They can be found in diverse habitats worldwide, including forests, streams, ponds, and even underground environments.
Overall, urodeles are a fascinating group of amphibians known for their unique morphological characteristics, extraordinary regenerative abilities, and diverse ecological adaptations.
