Apoda is a class of legless, burrowing amphibians known as caecilians. They have elongated, worm-like bodies, smooth, slippery skin, and are found in tropical environments. They primarily live underground, feeding on soil invertebrates. Their eyes are small and often covered by skin or bone, adapted for their subterranean lifestyle.

Apoda is a term often used to refer to a subclass of amphibians known as caecilians. Caecilians are primarily found in tropical regions around the world. Their geographical distribution includes parts of South and Central America, sub-Saharan Africa, Southeast Asia, and the Indian subcontinent. Specific countries where caecilians can be found include Brazil, Colombia, Ecuador, India, Sri Lanka, and the Philippines, among others.

Caecilians typically inhabit moist, tropical environments. They are often found in rainforests, where the soil is rich and humid, providing suitable conditions for their burrowing lifestyle. They may also be found near streams or wetlands, which offer the moisture necessary for their skin respiration.

Caecilians are adapted to a fossorial lifestyle, meaning they live primarily underground. They have elongated, limbless bodies that help them burrow through soil and leaf litter. Their diet typically consists of small invertebrates such as earthworms, termites, and other soil-dwelling organisms. Some species are known to have specialized feeding habits, and their anatomical features have adapted to suit these ecological niches.