Eric Walker added Monodontidae to Cetacea
Eric Walker added Cetacea - Wikipedia to Cetacea
Eric Walker added Bottlenose dolphins and Pilot whale to Delphinidae, and added Delphinidae to Cetacea and Dolphins
Eric Walker added a number of topics and Cetacea - Wikipedia to Cetacea, and added Cetacea to Artiodactyla
Eric Walker added a number of topics and Why are ungulates classified by toe parity? : askscience to Artiodactyla, and added Artiodactyla to Mammalia
Eric Walker added Dolphin - Wikipedia and Platanistidae - Wikipedia to Platanistidae, and added Platanistidae to Cetacea and Dolphins
Eric Walker added Delphinidae and Platanistidae and a number of links to Dolphins, and added Dolphins to Cetacea