eddymrsci said:
Am I the only one who noticed the obvious and outrageous conflict in these definitions? Are dictionary definitions really reliable?
This is not France, as if anybody was wondering about that. There is no "English Academy" that is the supreme official authority on the meanings of words, the creation of new ones, and the overall evolution of our language. Thank the goddess for that.
This is not Germany, where the government can punish you for thoughtlessly using a universally understood foreign word like "telefon" or "automobil," when there's a perfectly euphonious native word with exactly the same meaning and even a similar etymology, "Fernsprecher" or "Kraftwagen." Thank -- well some would say thank FDR and Uncle Joe Stalin for that.
The role of our dictionaries, even the venerable OED, is only to
record and
share the meanings that these words convey,
at this moment in time, within a consensus of the English-speaking population, or alternate meanings within distinct English-speaking communities. It is the people who use the language as a tool for living who decide what words mean, not scientists or linguists.
That said, most heavy dictionaries do a pretty good job of placing the "proper" scientific definition first, a gentle reminder that language does its best work when it remains logical and consistent. Your definition number one is a textbook-perfect summary of the scientific use of the word "animal," in terms that any reasonably well educated anglophone can understand.
But they would not be doing their jobs well at all if they failed to tell us, in addition, how these words are very often, if not most often, used by laymen. There is a huge segment of the population that hews to a paradigm in which humans are held to be substantively different from all the rest of the animal kingdom, that only calls humans "animals" when they attend biology class. Your second definition speaks squarely to that.
Many of those people also hold mammals up as, second only to man, the pinnacle of evolution (if they even believe in it) and so do not call birds, reptiles, and amphibians -- much less true fish and cartilaginous fish (sharks, eels, etc.), not to mention arthropods, mollusks, bivalves, and amoeba -- "animals." They probably call the lower phyla "critters," "bugs," "vermin," "germs," etc.
This is admittedly a vestigial belief inherited from strict practitioners of the newer religions, especially the Abrahamic ones, who hold Homo sapiens in such awe and can't even spell "DNA." Nonetheless, as I've often said, some things aren't either right or wrong, they just
are, and what we need to do is deal with them, not argue with them.
If not, it will be our loss when a communication barrier prevents us from being able to dialog with the people who hew to the third definition, that a human becomes, metaphorically, an animal when he ceases to avail himself of the abilities that differentiate him from "the animals" in the second definition.
This respect for science tempered with an acknowledgment of popular usage is rampant in dicitionaries. It has to be or they wouldn't be of much use. Imagine a European who led a sheltered life visiting America for the first time and seeing signs leading to a "buffalo ranch." He looks up "buffalo" in his unabridged dictionary and finds (I'm winging this, I don't have one at this location):
Any of various species of horned ungulates of genus Bos native to tropical regions and spending much of their time in the water.
He would be scratching his head in confusion, considering that he might be on a highway in sub-Arctic, relatively dry Montana. Good thing that definition number two is there (and this is a direct quote that I remember exactly):
Popularly, but unscientifically, the American bison.
So that's what the Americans call those big, hairy brown cows you see in all their western movies.
Or the teenager reading his neighbor's instructions on feed and care of his pet birds while he's on vacation, which include: "Give the songbirds plenty of greens and the small seeds, but the parakeets get kibble and the large seeds." He looks up "parakeet" in his dictionary and finds:
Any of various genera of small, tropical and subtropical psittacines, having long tails and no bare skin on their faces.
He searches the house and finds no bird matching that description. Fortunately definition number two is there:
The inaccurately named Budgerigar parakeet, a very small Australian parrot with a short tail and a hooked but extremely short beak, popularly known as the budgie in all English-speaking countries except the U.S.
The poor budgie will not have to survive on finch feed for two weeks.