Figure 3. A in Humpback whales interfering when mammal-eating killer whales attack other species: Mobbing behavior and interspecific altruism?

Figure 3. A mother humpback whale and newborn calf photographed off Baja California, Mexico, Oct 2009. When necessary, the mother will use her massive pectoral flippers to defend her small calf from attacking predators, especially killer whales. Photo: M. Lynn, NOAA, Southwest Fisheries Science Center.