The family Rajidae, commonly known as skates, is a large group of cartilaginous fish that belong to the order Rajiformes. These aquatic creatures are found in the shallow and deep waters worldwide and are also known by other names such as ray, devilfish, and electric ray. Skates have flat bodies and enlarged pectoral fins that allow them to glide gracefully through the water. Other synonyms for the word family Rajidae include whiptail ray, stingray, spiny ray, and sawfish. Although skates are often misunderstood creatures, they play an essential role in maintaining marine ecological balance and are crucial to both marine ecosystems and the fishing industry.