Regularly migrating from Alaska to Hawaii and back again in the Pacific Ocean (and New England to Dominican Republic and back again in the Atlantic Ocean), the humpback whale was considered to be the mammal with the longest migration in the world. One humpback was recorded making an 11,000-mile migration from American Samoa to Antarctica and back, setting the longest migration record for a mammal.
However, in 2011 the humpback whale was forced to take the No. 2 spot on that list after researchers recorded a gray whale migrating 14,000 from Russia to Mexico and back again.
During the summer months the humpback whale feeds on millions of krill, storing up fat that they will live off of during the winter months. The filter-feeding humpback whales have become an annual tourist attraction in areas like Boston and Seattle where boats of people go out to the feeding grounds to see these 40-ton behemoths eat.