Gould - Grimm's Greatest Tale

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    THIS v

    EW OF

    LIF

    Grimm's reatest

    Tale

    The threads

    o

    our

    linguistic

    history

    closely

    match

    the pattern o our

    biological development

    by Stephen

    Jay

    Gould

    With the possible exception of Eng and

    Chang, who had

    no choice,

    no

    famous

    brothers have ever been closer than

    Wilhelm and Jacob Grimm,

    who

    lived

    and

    worked

    together throughout their

    long

    and productive

    lives. Wilhelm

    (1786-1859) was the prime

    mover

    in col

    lecting the Kinder-

    und

    Hausmiirchen

    (fables

    for the

    home and

    for children) that

    have become a pillar and icon of our cul

    ture. (Can

    you even

    imagine a

    world with

    out Cinderella or Snow White?) Jacob,

    senior

    member of the partnership

    (1785-1863), maintained a primary inter

    est in

    linguistics

    and

    the

    history

    of human

    speech.

    His

    Deutsche Grammatik,

    first

    published in 1819, became a cornerstone

    for

    documenting relationships between

    l n d ~ E u r o p e a n languages. Late in their

    lives,

    after a principled resignation

    from

    the University of Gottingen (prompted by

    the king of Hanover's repeal of the 1833

    constitution

    as too

    liberal), the brothers

    Grimm settled in Berlin

    where

    they began

    their

    last and

    greatest project, the

    Deut

    sches Wijrterbuch a gigantic German

    dictionary documenting the

    history,

    ety

    mology,

    and use of every word contained

    in

    three centuries of literature

    from Lu

    ther to

    Goethe.

    Certain scholarly projects

    are,

    like medieval

    cathedrals, too

    vast for

    completion

    in the lifetime of their archi

    tects.

    Wilhelm never got

    past

    D;

    Jacob

    lived to see the letter F

    Speaking in Calcutta, during the in

    fancy

    of the British raj

    in 1786,

    the phi

    lologist

    William Jones first noted impres

    sive

    similarities

    between

    Sanskrit and the

    classical languages of Greece and Rome

    (an Indian

    king, or

    raja, matches

    rex,

    his

    Latin counterpart). Jones's observation

    led to

    the

    recognition

    of a great

    l n d ~

    European

    family

    of languages, now

    spread from the British Isles and Scandi

    navia to

    India, but clearly

    rooted in

    a

    20

    NATURAL HISTORY

    2/89

    single, ancient origin. Jones may have

    marked

    the basic similarity,

    but the broth

    ers Grimm

    were

    among the

    first

    to codify

    regularities of change that underpin the

    diversification

    of the rootstock into its

    ma

    jor

    subgroups

    (Romance

    languages, Ger

    manic

    tongues, and so on). Grimm's law,

    you see, does not state that all frogs shall

    tum into princes

    by

    the story's

    end,

    but

    specifies

    the characteristic changes

    in

    consonants

    between

    P r o ~ l n d ~ ~

    pean (as retained in Latin) and the Ger

    manic languages.

    Thus, for

    example,

    Latinp'sbecomef'sinGermaniccognates

    (voiceless

    stops become

    voiceless frica

    tives

    in the jargon). The latin

    plenum

    be

    comes full vol/, pronounced foll in

    German);

    piscis becomes

    fish Fisch in

    German); and pes

    becomes

    foot Fuss

    in German). (Since English is

    an

    amalgam

    of a Germanic stock

    with

    Latin-based im

    ports from the Norman conquest, our lan

    guage bas added Latin cognates to n g l ~

    Saxon

    roots

    altered according to Grimm's

    law-plenty,

    piscine, and

    podiatry.

    We

    can

    even

    get both for the price of one in

    plentiful.

    I first learned about Grimm's law in a

    college

    course more

    than

    twenty-five

    years

    ago. Somehow,

    the

    idea

    that the

    compilers

    of Rapunzel

    and

    Rumpelstilt

    skin lso gave the world a great scholarly

    principle in linguistics struck me as one of

    the

    sweetest

    little

    facts

    I ever learned a

    statement,

    symbolic

    at least, about inter

    disciplinary study and the proper contact

    of

    high

    and vernacular culture. I

    have

    wanted

    to

    disgorge

    this

    tidbit for years

    and am delighted that this essay

    finally

    provided an opportunity.

    A great dream of unification underlay

    the observations

    of

    Jones

    and the

    codifica

    tion of systematic changes by Jacob

    Grimm. Nearly all the languages of

    Eu

    rope (with

    such fascinating

    exceptions

    as

    Basque, Hungarian, and Finnish)

    could

    joined

    to

    a pathway that spread throu

    Persia all the way to India

    via

    Sans

    and its

    derivatives. An origin in

    the

    m

    dle, somewhere in the Near East, seem

    indicated, and such

    fossil l n d ~

    pean

    tongues

    as Hittite support

    this in

    pretation. Whether the

    languages w

    spread,

    as

    convention dictates,

    by

    c

    quering nomadic tribes on horseback

    as Colin Renfrew

    argues

    in his

    recent b

    Archaeology

    and

    Language,

    Cambrid

    University

    Press, 1987), more gently

    passively

    by the advantages of agric

    ture,

    evidence

    points

    to

    a

    single sou

    with

    a

    complex history

    of proliferation

    many directions.

    Might we extend the vision of un

    even

    further? Could we link I n d ~

    pean

    with

    the Semitic (Hebrew,

    Arab

    languages of the scx:alled f ~ s i a t

    stock;

    the Altaic languages of Tibet,

    M

    golia, Korea, and Japan; the Dravid

    tongues

    of southern India;

    even to

    the

    tive Amerindian languages of the

    N

    World? Could the linkages extend e

    further

    to

    the languages of southeast

    Asia

    (Chinese, Thai,

    Malay, Tagalog),

    Pacific Islands, Australia, and

    N

    Guinea,

    even

    (dare one dream) to

    most

    different

    tongues

    of southern Afri

    including the Kboisan family

    with

    its co

    plex clicks

    and

    implosions?

    Most scholars balk at the

    very

    thou

    of direct evidence for connections amo

    these basic linguistic phyla.

    The peop

    were once

    united, of course, but

    the

    d

    sion

    and spreadoccurred so long

    ago (o

    the usual argument

    goes)

    that no traces

    linguistic similarity should be left

    acco

    ing to standard views about rates

    change in such volatile

    aspects of hum

    culture.

    Yet

    a small group of schola

    including some prominent emigres fr

    the

    Soviet Union (where theories of

  • 8/9/2019 Gould - Grimm's Greatest Tale

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    guistic unification are not so scorned), per

    sist in arguing

    for

    such linkages, despite

    acrimonious

    rebuttal and

    dismissal from

    most Western colleagues. One

    heterodox

    view tries to

    link

    Indo-European

    with

    lin

    guistic

    phyla

    of the Near East and north

    ern Asia

    from

    Semitic at the

    southwest,

    to Dravidian at the southeast, all the way

    to Japanese at the northeast) by

    re-

    constructing a hypothetical ancestral

    tongue called Nostratic (from the Latin

    noster

    meaning our ).

    n even more

    radical

    view holds

    that

    modern tongues

    still

    preserve enough

    traces of common

    ancestry to

    link

    Nostratic

    with

    the native

    languages of the Americas (all the

    way

    to

    South America via the

    Eskimo tongues,

    but excluding the puzzling Na-Dene lan

    guages of northwestern America).

    The

    vision

    is

    beguiling, but I haven't the

    slightest idea whether any of these unor

    thodox

    ideas have a prayer of

    success.

    I

    have no technical knowledge of linguis

    tics,

    only

    a hobbyist's interest in language.

    But I can report, from my own evolution

    ary domain, that the usual

    biological

    argu

    ment, invoked a priori against the possibil

    ity of direct linkage among linguistic

    phyla,

    no longer applies.

    This conven

    tional argument held that Homo

    sapiens

    arose and split

    by

    geographical migra

    tion) into its racial lines far too

    long

    ago

    for

    any

    hope that ancestral linguistic similar

    ities might be retained

    by

    modern

    speak

    ers. A

    stronger

    version

    held that

    various

    races of Homo

    sapiens arose

    separately

    and in parallel

    from

    different stocks of

    Homo

    erectus

    thus putting the

    point

    of

    common linguistic ancestry even further

    back into a truly inaccessible past. Indeed,

    according to this view, the distant com

    mon ancestor of all modern

    people

    might

    not even have possessed language.

    Some

    linguistic phyla might

    have

    arisen

    as

    sepa

    rate evolutionary inventions, scotching

    any hope for theories of unification.)

    The latest

    biological

    evidence,

    mostly

    genetic but with some contribution from

    paleontology,

    strongly indicates a

    single

    and discrete African origin for Homo

    sa-

    piens at a date much closer to the present

    than standard

    views

    would have dared to

    imagine-perhaps only 200,000 years ago

    or

    so, with all

    non-African diversity per

    haps no more than 100,000 years old see

    my column of June 1987). Within this

    highly compressed framework ofcommon

    ancestry, the

    notion

    that conservative

    lin-

    guistic elements might still link existing

    phyla no longer

    seems

    so absurd a

    priori.

    The idea is

    worth

    some

    serious

    testing,

    even i

    absolutely nothing

    positive

    eventu

    ally

    emerges.

    This

    compression

    of the time scale

    lso

    suggests

    possible

    success for a potentially

    powerful

    research program into the great

    question of historical linkages among

    modern peoples. Three major and entirely

    independent

    sources

    of

    evidence

    might

    be

    used to reconstruct the human

    family

    tree:

    (1) direct but limited evidence of fossil

    bones and artifacts by

    paleontology

    and

    archeology; 2) indirect but copious data

    on degrees of genetic relationship

    among

    living

    peoples; (3) relative similarities and

    differences

    among

    languages, as dis

    cussed

    above.

    We

    might attempt to

    corre

    late these separate sources, searching for

    similarities in pattern. I am delighted to

    report

    some

    marked

    successes

    in this di

    rection ( Reconstruction of Human Evo

    lution: Bringing

    Together Genetic,

    r-

    chaeological, and Linguistic Data, by

    L.

    L.

    Cavalli-Sforza, A. Piazza,

    P Men

    ozzi,

    and J. Mountain, Proceedings

    o he

    National Academy o Sciences August

    1988, pp. 6002-6). The reconstruction of

    the human family tree its branching or-

    . der, its

    timing,

    and its geography-may

    be within our

    grasp.

    Since this tree is the

    basic datum of

    history,

    hardly anything

    in

    intellectual life could be more important.

    Our recently

    developed

    ability to

    mea

    sure genetic distances for large numbers

    of protein or DNA sequences provides the

    keystone

    for

    resolving

    the human

    family

    tree.

    As

    I have argued many times in this

    forum,

    such genetic data take pride of

    place not because genes are ''better or

    more fundamental than data of mor

    phology,

    geography, and language but

    only because genetic data are so

    copious

    and so comparable. We all shared a com

    mon origin, and therefore a

    common

    ge

    netics and

    morphology, as

    a

    single ances

    tral population some quarter of a million

    years ago. Since then, differences

    have

    accumulated as populations separated

    and

    diversified.

    As a

    rough

    guide, the

    more extensive the measured differences,

    the greater the time of separation. This

    correlation

    between

    extent of difference

    and time of separation is our chief tool

    for

    reconstructing the human

    family

    tree.

    But this relationship is only rough and

    very imperfect. So many factors can dis-.

    tort and disrupt a strict correlation of time

    and difference. Similar features can

    evolve

    independently-black

    skin in

    Afri

    cans and Australians,

    for

    example,

    since

    these groups stand as far apart

    genealogi

    cally

    as

    any two

    peoples

    on Earth. Rates of

    change

    need

    not be constant.

    Tiny popula

    tions,

    in particular, can undergo marked

    increases in rate, primarily by random

    forces of genetic drift. The best way to

    work

    past these difficulties lies in a brute

    force approach: the greater the quantity

    of measured differences, the greater the

    likelihood

    of a primary correlation be-

    tween time and

    overall

    distance. Any

    gle measure of distance may be impac

    by

    a large suite of forces that can disr

    the correlation of time and differen

    natural selection,

    convergence,

    rapid

    netic drift in

    small

    populations. But tim

    the only

    common

    factor underlying

    measures of difference; when two pop

    tions

    split,

    all

    potential measures of

    tance

    become free

    to diverge. Thus,

    more

    independent measures of dista

    we

    compile, the more likely we are

    recover the only

    common signal

    ofdive

    fication:

    time itself. Only genetic data

    least

    for

    now) can supply this requi

    richness in number of

    comparisons.

    Genetic data

    on

    human

    differences

    flowing

    in from

    laboratories through

    . the world, and this essay shall be obso

    before it hits the

    presses.

    Blood gro

    provided our

    first

    crude insights dur

    the 1960s, and Cavalli-Sforza was a

    neer in these studies. When technique

    electrophoresis permitted us to

    sur

    routinely for variation in the enzymes

    proteins

    coded

    directly

    by genes,

    t

    data on human differences truly bega

    accumulate

    in

    useful cascades. More

    cently,

    our ability to sequence DNA it

    has given us even more immediate acc

    to the sources of variation. (The data

    mitochondrial DNA has received

    most

    publicity, including

    an essay

    in

    series and a story

    in Newsweek

    that

    br

    conceptual ground

    with

    a cover paint

    of Adam and

    Eve

    as black, i minimall

    with their near-white

    complexions,

    honor our ultimate African

    ancestry.

    additional data from other genes h

    been published and continue to accum

    late rapidly.)

    The methodologically proper and p

    terful brute force

    comparisons

    are, for

    lmoment,

    best made

    by

    studying

    differ

    ~ t t e s and frequencies ofgenes as revea

    in

    the

    amino

    acid sequences of

    enzym

    land proteins. Cavalli-Sforza and

    ]eagues

    used

    information

    from

    alle

    (varying states of genes, as in tall

    ver

    short for Mendel's peas) to construc

    tree

    for

    human populations least affec

    by

    extensive interbreeding. (few hum

    groups are entirely aboriginal, and

    m

    populations are interbred to various

    grees,

    given

    the

    two most

    characteri

    attributes of

    Homo

    sapiens: wanderl

    and

    vigorous sexuality. Obviously, i

    wish

    to reconstruct the order of

    diversif

    branching

    from

    a common point of orig

    historically mixed populations

    will c

    fuse our quest. The Cape

    Colored,

    liv

    disproof

    from

    their own ancestors for

    Afrikaner ideal of apartheid, would

    j

    Khoisan

    with Caucasian. One town

    Brazil might well

    join everyone.)

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