Pregnancy
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Northern Right Whale Migrations: Winters in the South
Northern right whales in the Atlantic winter off the shores of Georgia and Florida. This is their calving grounds, where female whales give birth. Whales don't eat during this period. Instead, they live off huge fat reserves that they've built up by eating tiny ocean plankton and small fish during the summer. If that sounds like a lean diet, consider that they grow up to 60 feet long and weigh 100 tons!
In late February, the whales take off for the trip north, with the males out front and the females and their calves following at a slower pace.
Source: Journey North: A Global Study of Wildlife Migration, funded by the Annenberg/CPB Math and Science Project
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