"After that, I knew what to expect and could photograph the birds as they dove.... With remarkable eyesight, the gannets follow the dolphins before diving in a free fall from a hundred feet high, piercing the surface of the water headfirst at a speed of 50 miles an hour. They dive as deep as 30 feet to get their fill of sardines before returning to the surface. This type of sardine is the best to photograph because, when confronted by predators, they don’t move. Their instinct is to swim down as a group, but the dolphins keep them at the surface."
Said Greg Lecoeur, who took the 2016 National Geographic Nature Photograph of the Year.