This video is called Ocean Stories 3 – Dolphins and Whales.
From Wildlife Extra:
September 2013. In the photo, a group of long-beaked common dolphins are hitching a free ride on the bow wave of a migrating gray whale. Taken near Catalina Island off the coast of Southern California, the photo was shot from about 600 feet by scientists with the Cetacean Health and Life History Program at the US National Oceanic and Atmospheric Administration‘s (NOAA) Southwest Fisheries Science Center.
Every year, almost the entire population of eastern North Pacific gray whales migrates from their feeding grounds in the Arctic down to their breeding and calving grounds off the coast of Baja California, Mexico. And most years, NOAA scientists survey and photograph the whales from the air. By analysing the high-resolution photos, scientists can tell how well-nourished the…
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