Additional columns I wonder if it would be worth adding a column for the wild ancestor of each animal In many cases it has a different name often also a separate article and it may not be obvious what it is without referring to the article In some cases the wild ancestor is extinct or is unknown and this too would be useful information In at least one case the domestic animal is extinct but the wild ancestor survives There is also a considerable amount of inconsistency about which article the animal links to for example the pigeon is listed as Rock Dove but actually links to domesticated pigeon the rabbit is listed as and links to European rabbit not domestic rabbit the guinea fowl links to Helmeted Guineafowl not domesticated guineafowl A separate column for the domesticated and wild animals would clarify all this It also seems to me that there are two subtly different reasons why someone might want to consult this list They may be interested in a list of domestic animal species which is what we have or they may be interested in which wild animal species have been domesticated At present the latter information is not here a separate coloumn would make both easily available There is a great deal of variation in how far domestication has progressed in each case Some dog pig llama silk worm are now markedly different species from their wild ancestors others mink budgerigar cockatiel fancy rat really only differ from the wild animals in colour and tameness still others are barely if at all distinguishable from the wild animal mute swan Mandarin duck Finally some species are not really domesticated at all but are captured from the wild and used by people Asian elephant stingless bee cochineal insect There is a note in the text about captive bred or semi domesticated animals but nowhere in the list to put this information How about a column indicating the degree of domestication