Gray whales a fraction of historic levels, genetic research says

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Gray whales (Eschrichtius robustus) return from Arctic feeding grounds to lagoons in Mexico each winter to give birth. New genetic results indicate that in the past the number of whales returning to these lagoons may have been much larger. Photo loca ...
Gray whales (Eschrichtius robustus) return from Arctic feeding grounds to lagoons in Mexico each winter to give birth. New genetic results indicate that in the past, the number of whales returning to these lagoons may have been much larger. Photo location: Laguna San Ignacio, Mexico. Credit: Geoff Shester

Gray whales in the Pacific Ocean, long thought to have fully recovered from whaling, were once three to five times as plentiful as they are now, according to a report to be published September 10 in the Proceedings of the National Academy of Sciences.


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