by David Sonju
Posted 9/04/13, 01:08 pm
Fifty years ago, fewer than 1,500 humpback whales remained, stirring an international effort to ban commercial whaling operations. The population has steadily grown since then and now more than 60,000 humpbacks exist worldwide, with an estimated 20,000 in the North Pacific alone. Yet they are still listed as an endangered species by the National Oceanic and Atmospheric Administration (NOAA).