Humpback Whales Make Longest Mammal Migration

Facts matter: Sign up for the free Mother Jones Daily newsletter. Support our nonprofit reporting. Subscribe to our print magazine.


Humpback whales in the Atlantic have been tracked making the longest migration on record. New Scientist reports that seven individual whales swam 5,160 miles between Antarctica and the Caribbean coast of Costa Rica. One mother and calf made the trip in 161 days. While some researchers claim that gray whales hold the record for longest mammalian migration—from Mexico to the Arctic, at 4700 miles—no individual gray whale has been documented travelling the full extent of their migratory range, and it’s possible that no individual makes the entire migration. Kristin Rasmussen at Cascadia Research Collective in Olympia, Washington, says the new humpback data are important in light of proposals to hunt humpbacks, including Japan’s decision to catch 50 humpbacks each year as part of its [bogus] scientific whaling program. “Whales don’t respect political boundaries,” she says. “Killing whales in one area could potentially impact their population half way around the world.”–Julia Whitty

THE END...

of our fiscal year is Thursday, June 30, and we have a much larger fundraising gap than we can easily manage with only days left to go.

Right now is no time to come up short: If you value the hard-hitting, democracy-protecting, justice-advancing journalism you get from Mother Jones, please help us keep charging as hard as we possibly can with a much-needed and much-appreciated donation today.

payment methods

THE END...

of our fiscal year is Thursday, June 30, and we have a much larger fundraising gap than we can easily manage with only days left to go.

Right now is no time to come up short: If you value the hard-hitting, democracy-protecting, justice-advancing journalism you get from Mother Jones, please help us keep charging as hard as we possibly can with a much-needed and much-appreciated donation today.

payment methods

We Recommend

Latest

Sign up for our free newsletter

Subscribe to the Mother Jones Daily to have our top stories delivered directly to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate