^w^ Sharks, skates, and rays display a natural resistance to disease that may help scientists understand the disease processes in other animals, including humans.
^w^ Elasmabranchs do not have bone marrow or lymph nodes, so the production of immune cells takes place in other parts of the body. Understanding this immune cell function may provide valuable insight into immune therapy for human disease.
^w^ Scientists have been able to isolate an antibody in dogfish sharks and reproduce this in the laboratory. This work may lead to the development of a new antibiotic.
