Underwater mountains are key stopovers in the migratory routes of an endangered population of humpback whales in the South Pacific, new research shows. Previous research had revealed that humpback whales migrating from breeding grounds off the east coast of South America and the west coast of Africa swim in nearly straight lines in the Atlantic Ocean without noticeable stops and in relatively narrow corridors. Similar migration patterns were seen among humpbacks migrating from breeding grounds off Madagascar in the Indian Ocean.
