👉 Tetrapnopes are a group of organisms known for their unique ability to form tetrapods, or three-legged animals. This group includes a wide range of species, including echinoderms and other bivalves, crustaceans, and echelid insects. They often have a single, long, flexible spine that can support multiple legs, allowing them to walk on land or swim in water. These creatures are typically found in aquatic environments, such as rivers, lakes, and
