Tentacles are elongated, flexible appendages found in various animals, most notably in cephalopods like octopuses and squids. These structures are used for a variety of functions, including movement, grasping objects, and sensing the environment. Tentacles are often equipped with suckers or hooks that help the animal capture prey and navigate their surroundings. In addition to cephalopods, tentacles can also be found in jellyfish and anemones, where they serve to capture food and provide defense against predators. The design and function of tentacles vary widely among species, reflecting their adaptation to different habitats and lifestyles in the animal kingdom.