Article Correctness Is Author's Responsibility: Why do whales migrate? They return to the tropics to shed their skin, scientists say

(NOAA Fisheries West Coast Region) Whales undertake some of the longest migrations on earth, often swimming many thousands of miles, over many months, to breed in the tropics. The question is why? In a research paper in Marine Mammal Science, scientists propose that whales that forage in polar waters migrate to low latitudes to maintain healthy skin.