Barbels refer to the fleshy whisker-like appendages found near the mouths of certain animals, such as fish and catfish. Some synonyms for the word "barbels" include feelers, whiskers, tendrils, and sensory organs. These terms all describe the same feature, which is used for exploring the environment and detecting prey. The length, thickness, and shape of these barbels can vary depending on the species and can even be used to distinguish between closely related animals. Whatever their name, these appendages play a crucial role in the survival of many aquatic animals and are an interesting example of the diversity and adaptability of life in the world's oceans and freshwater systems.