The speed guidelines are often not adhered to," said Mason Weinrich, executive director and chief scientist of the Whale Center of New England
in Gloucester, which studies whales.
Researchers at the Whale Center of New England
spotted a number of calves that lobtailed, though their mothers did not.
Over the next 9 years, many other whales in the population, and especially juveniles just coming into their own as independent feeders, adopted the tail-slam maneuver, reported a team led by Mason Weinrich of the Whale Center of New England
in Gloucester, Mass.