Eric Walker added Mouse-deer and Tragulina - Wikipedia to Tragulina, and added Tragulina to Ruminantia

Eric Walker added Tragulina to Ruminantia, and added Ruminantia 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