One of the most striking things about "kinds" is that they typically get much more inclusive as they get more unfamiliar to the average armchair baraminologist (and I do realize that ALL baraminologists are actually of the armchair "kind"). Dogs or cows are pretty well-known, so soecies = kind for them. Fish might comprise a half-dozen "kinds" for all but the sophisticated kindologist, so they are somewhere around Order or Class = kind. Wormy things likele mix phyla - annelids, nematodes, and flatworms all mixed into one. Bacteria and Archaea are different Kingdoms, but I'll bet that they're the Germ Kind to most users of "kind" - and viruses and typanosomes are probably in there, too.
Someone once said that a "kind" is the classification of critters used by a bright three-year-old kid. Good definition, say I.
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