Answer:
Cetology
Step-by-step explanation:
There are around 80 species of whales, porpoise, and dolphins in the scientific order of Cetacea. The branch of Marine Mammal Science that deals with the study of such species is known as Cetology or Whalelore.
Cetologists seek to understand cetacean distribution, evolution, morphology, community dynamics, behavior, and other topics. However studying sea mammals is a challenging task as they spend only 10% of their time on surface and that too just to breathe.