Eric Walker added "Killer whales" to Orcas

Eric Walker added How Do Marine Mammals Avoid the Bends? – Woods Hole Oceanographic Institution to Nitrogen and Whales

Eric Walker added On the Verge of Extinction, These Whales Are Also Shrinking - The New York Times to Whales

Eric Walker added Whale - Wikipedia to Whales

Eric Walker added More than 120 whales die in mass stranding on Chatham Islands | Whales | The Guardian to Whales

Eric Walker added New Origin Story for Gross Blobs That Wash Up on Beaches - The New York Times to Articles in the New York Times and Whales

Eric Walker added For the First Time, Scientists Record the Slow Beat of a Blue Whale's Heart | Discover Magazine to Whales

Eric Walker added Evolution of cetaceans - Wikipedia to Eocene and Whales

Eric Walker added Gallery: Whale evolution - from land to sea | New Scientist to Whales

Eric Walker added Early whales swam doggy paddle across the ocean from India to Africa | New Scientist to Whales

Eric Walker added Orcas attack boats off coast of Spain and Portugal, leaving scientists stumped : NPR and Orca attack Rudder losses June 4 south of Cadiz - YouTube to Orcas, and added Orcas to Whales

Eric Walker added a number of topics and Cetacea - Wikipedia to Cetacea, and added Cetacea to Artiodactyla

Eric Walker added Orcas and a number of links to Whales, and added Whales to Cetacea