http://www.aquariumofpacific.org/onlinelearningcenter/species/dumbo_octopus
http://www.aft.org/periodical/american-educator/winter-2007-2008/deep-seafloor-desert-devoid-life
http://www.amnh.org/explore/curriculum-collections/deep-sea-vents/light-and-dark-in-the-sea
http://www.aft.org/periodical/american-educator/winter-2007-2008/deep-seafloor-desert-devoid-life
http://www.amnh.org/explore/curriculum-collections/deep-sea-vents/light-and-dark-in-the-sea