Abnormal tissue growth on a mucous membrane.
Answer:
Collapse of seals, sea lions & sea otters in North Pacific triggered by overfishing of great whales. ... Lead author Alan Springer (University of Alaska, Fairbanks) and his co-authors propose that the decimation of great whale (baleen and sperm) populations by overfishing removed a major source of food for killer whales.
Explanation:
also the answer with the link was deleted