- In a research paper published in Marine Mammal Science, scientists propose that whales that forage in polar waters migrate to low latitudes to maintain healthy skin.
- Whales undertake some of the longest migrations on earth, often swimming many thousands of miles, over many months, to breed in the tropics.
- Migrating to warmer water would allow whales to revive their skin metabolism and molt in an environment that does not sap their body heat.