Sources

  • Alaska, October 2004 (  Blue Marble: Next Generation ; satellite: NASA Terra/Aqua, sensor: MODIS )
  •  Beluga whale underwater ( © Shedd Aquarium/ www.fishphotos.org )
  •  Cook Inlet, June 15, 2006 (  MODIS Rapid Response , satellite: NASA Terra, sensor: MODIS )
  •  Beluga population data ( Courtesy National Marine Mammal Laboratory, NOAA Alaska Fisheries Science Center )
  •  Beluga whales in Chukchi Sea ( Laura Morse, National Marine Mammal Laboratory, NOAA Alaska Fisheries Science Center )