Caecilians are legless, serpent-like amphibians that belong to the order Gymnophiona. They are closely related to salamanders and frogs. Caecilians have been called "blindworms" due to their lack of eyes, making them look like worms. Other synonyms for caecilians include "burrowing amphibians" because they are proficient diggers and spend most of their time underground. They are also called "ringed caecilians" due to their slender, ring-like appearance. Additionally, "legless lizards" is another synonym for caecilians, due to their snake-like body shape, but they are not related to lizards in any way. No matter what they are called, caecilians are fascinating and unique creatures that continue to fascinate researchers and nature lovers around the world.