Like all entities, the chondrichthyans, while advancing their own individual purpose (survival, maintanence, reproduction), also provide a larger value for others. As apex predators, they help maintain the delicate balance in the world's oceans. In addition, they provide value for humans beings, both in terms of adding to the wonder and beauty of creation, and in various practical values, such as providing food.
The taxonomy of Chondrichthyes reveals both the connectedness of living organisms and the diversity in nature. The Chondrichthyes, because of sharing common origin, all share particular features. At the same time, they reveal a great diversity in forms, from the fusiform great white shark, hammerhead shark and sawfishes, to the flattened, disc-like stingrays and skates, to the electric rays with powerful electrical organs.