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    Here's the pair to the question "Did it get there?"  
    Gulbenkian love essay  
     
                                        Love 
    from the bottom up
  
     
    I am a biologist, specifically a reproductive biologist, and have had two 
    marriages, am about to enter a third, have fathered six children. I have changed 
    several ways of thinking in reproductive biology, mostly by my book Reproduction 
    in 1977 but also by my laboratory and clinical research on spermatozoa in 
    female tracts, essays on various topics from metamorphosis to maternal effects 
    in development, and my book on human evolution, The Privileged Ape (1989). 
     
    Recently, I have produced books and papers with the mathematician Ian Stewart 
    (he does the Scientific American monthly Mathematics column), especially The 
    Collapse of Chaos and Figments of Reality  but also The Science of Discworld 
    with Terry Pratchett, and a science-fiction novel Wheelers to be published 
    in October 00. As the science-fiction author Theodore Sturgeon said of his 
    varied output Most of this has been about love, one way or another!. 
     
     
    This is my response to your plea to bring the - a - scientific viewpoint to 
    your Human Sculpture interactions. Complex systems, the magic of their interactions, 
    and the ways in which human lives are drawn into complex, complicated, occasionally 
    simple emotional relationships  sexual and symbiotic systems, the ways 
    in which biological organisms are drawn into complex, complicated, occasionally 
    simple evolutionary and ecological relationships  are my abiding delight. 
     
    So-called explanations of these patterns, in modern pop 
    biology books and indeed in student textbooks, using game theory, words like 
    exploitation, I-win-so-you-lose formats drive me to despair. I do not believe 
    that such bean-counting, pretending that qualitative phenomena 
    can be made more explicable by putting imaginary numbers in (to models like 
    Prisoners Dilemma Games, where choice of prize and penalty rates are 
    crucial to outcome), tells us about the biology; it is, however, eminently 
    examinable! I think that there are many symbiotic relationships in biology 
    which are explicable  which can be appreciated if not understood academically 
     in terms of a primitive and universal love behaviour which organisms 
    evolve because it is better than other systems, exploitative systems, at continuing 
    into the future. This is a view like that of Lynn Margulis, but from a quite 
    different viewpoint.  
    Like her, I believe that Haldane and Hamilton were mistaken in rooting altruism 
    in kin selection, alarm calling and food sharing in reciprocal 
    favours  quantitative favours.  
    (Haldane was supposed to have said that he would 
jump into the 
    river to save two siblings, or four cousins,
!). Even John Maynard 
    Smiths much more humane stance, that these bean-counting exercises show 
    us that, counter-intuitively, altruism will evolve in Darwinian systems are, 
    I feel sure, based in reproductive theory which is too naïve. This argument 
    is all too often based in concepts like ESSs (Evolutionary Stable 
    Strategies) which have no real exemplars in the natural world but can 
    only work in computers. Games of Prisoners Dilemma, set up to show specific 
    pay-offs, fail to convince me; even iterated games cheat on biology in a thousand 
    ways. I explain some of the same problems, but I lean heavily on real biological 
    examples, running by agreed biological rules, and using commitment, especially 
    over-commitment (Nesse 1999), to attain biological success.  
     
    To do this I must teach some reproductive biology, Im afraid. Four topics: 
    real reproductive arithmetic (The Grim Sower); contradictions between adaptations 
    for growing up and for reproducing (living versus loving); privilege (what 
    parents give to offspring); and the reproduction of culture as biology (the 
    various Make-a-Human-Being kits in different human cultures) are necessary 
    to sit my argument upon. Love, for me, arises at the intersection of these 
    topics and as soon as it is identified as a major evolutionary force, spreads, 
    ramifies throughout biology and into nearly all of the interactions of people 
    with each other. But before we can have this flowering we must prepare the 
    soil and plant the seeds.  
     
    There is a real problem in teaching the first example, because we would all 
    much sooner think about love than about death.  
    All of the natural history programmes you enjoy so much on television show 
    mating, cuddly babies, and all the positive side of sexual reproduction in 
    mammals and birds  even in reptiles, fishes, some photogenic invertebrates 
    like mantis shrimps and cuttlefish. The animals we are shown as juveniles 
    
grow up and reproduce in their turn. (this is so often the 
    phrase used in the voice-over, and I wince each time I hear it). 
     
    Sorry, but it aint so, and we have to face this: very nearly all sexually- 
    produced creatures fail to breed. A breeding female starling in the English 
    Midlands lays about 16 eggs in her life, on average (2-5 in a nest, several 
    years of breeding) but the number of starlings stays much the same from year 
    to year. This means, inevitably, that two parents in this generation, on average, 
    produce two parents in the next generation. So fourteen baby starlings die, 
    mostly by suffocation complicated by digestion (something eats them
 
    thats what makes food chains), for each two that breed. Our female frogs 
    lay about 10,000 eggs in their lives, and only two survive to breed; a female 
    codfish, on average, lays forty million eggs and (if she were exquisitely 
    well calibrated!) 39, 999, 998 die for each two that breed. It is against 
    this background that we should look at surviving and breeding adaptations. 
     
     
    It is not difficult to see that animals frequently require opposite solutions 
    for surviving, feeding, escaping from predators as compared with finding mates, 
    copulating, investing in offspring. Here are some examples. Colouring: camouflage 
    is a good idea for hiding from prey and predator, but your mate must be able 
    to find you. Similarly with sound: its a good idea to keep quiet  
    unless there are special mating calls. Food utilisation: while growing up, 
    invest in getting bigger and stronger quicker, but breeding females should 
    divert food to yolk or milk, and breeding males should use their energy to 
    get and hold territories against other males, for example. While growing up, 
    avoid your peers because they compete for food and you can catch diseases 
    from them, they might call the attention of predators to you (unless youre 
    in a herd or shoal, getting protection from sheer numbers  but many 
    of you then starve
); but to breed sexually, you must meet at least one 
    congener, even if briefly. Avoid body fluids of your congeners like the plague 
     they are likely to carry a plague; but when breeding, donating and 
    receiving body fluids is dangerous (most wild animals have a high incidence 
    of venereal infections) but necessary. Probably because of these contradictions, 
    many animals separate the special breeding behaviour from the vegetative behaviour: 
    sometimes, as in bees and wolves, only a tiny proportion of all animals breeds, 
    and the others feed them; other animals have special breeding seasons when 
    they dont feed, and stoke up during the rest of the year. Mouthbrooding 
    fishes cant feed when theyre carrying babies, lactating female 
    mammals cant get out to the shops much and usually rely on their mates 
    (or, like bears, on stored food). Parent birds feeding chicks are usually 
    starving themselves.  
    The point here is that all these animals have specially- wired alternative 
    behaviour to do with breeding, often requiring the reversal of just those 
    tricks which enabled them to survive to breed.  
    Furthermore, being those organisms that have come through when nearly all 
    their siblings havent, the breeders have usually got plenty of food 
    reserves, and can clear vegetative hurdles without problems. They have survived 
    the cutthroat competition, have achieved adulthood and can relax vegetatively 
     although they frequently have to face sexual competition of quite different 
    kinds.  
     
    In my 1977 book, called very arrogantly just Reproduction, I expanded 
    the usage of our word privilege to include all those things that parents give 
    up in their own lives to help their children. Not only expensive schools and 
    better books and reading-glasses for the privileged child, but yolk and milk 
    and even the food supplies in the seeds of cereals; we subvert these away 
    from the chick, the calf, the wheat, barley and corn offspring to our own 
    use. (Dont worry, it all turns out happily, were not going to 
    be this gloomy, or solemn, all the way through.) It is very clear, as soon 
    as you think about this as part of the offsprings hereditary (not genetic) 
    endowment, that different parents endow all their offspring more or less well, 
    and that the different offspring of the same parents also differ in their 
    endowment. In Britain we say As alike as peas in a pod!; theyre 
    not, the ones at the end are much smaller, deprived, as are the mouse and 
    pig embryos at the tip and base of the uterus. Which offspring get the goods, 
    and which receive less than their due, is not to do with the genetics of that 
    egg or seed before it is fertilised. After fertilisation, there are some well-documented 
    cases where paternal genes demand more from the mother for this embryo. But, 
    in general, the variation in privilege is not correlated with the particular 
    combination of gene variants that that embryo or seed has received. Nevertheless 
    we must believe that, in general and overall, those embryos given the bigger 
    box to stand on will win out over their contemporaries  even their siblings 
     and contribute more to the future. On average, these will be from those 
    parents with most in hand, who have cleared the vegetative hurdles with most 
    to spare and can afford to be most generous to their own offspring. To 
    them that hath shall be given
.  
     
    So the series I presented above - starling, frog, cod - should be seen as 
    progressively less privileged. Biologists used to arrange organisms on a scale 
    from K-strategists, who invest lots in each offspring, to r- strategists who 
    cast out millions of offspring with little provision for each: cod is at the 
    r end, starling is K (modern biologists have a many-dimensional classification, 
    see for example Einum and Fleming 2000). Birds and mammals (as well as many 
    other animals from earwigs to mouth-brooding cichlid fishes to alligators) 
    give a lot of care to their young as well as supplying them with yolk and 
    milk. Again, its probably a good idea to have parents who can afford 
    to be generous  these have been the most successful ancestors, bye and 
    large, and their lineages have progressively increased the privilege of offspring. 
    Birds and mammals are the most obviously privileged, K-strategist animals, 
    and their privilege continues at least up to fledging in birds, weaning or 
    leaving the nest in mammals.  
     
    We should distinguish two kinds of provision of privilege. Gnus and guinea-pigs 
    keep their babies inside as long as possible, and release what are effectively 
    little adults, able to recognise grass to eat and predators to avoid almost 
    from birth  ostriches do that too. In contrast, rats, otters, and especially 
    primates have very dependent babies, which require much interaction with mother 
    (at least) to learn the ways of their worlds.  
    They have invented a new heredity, which is not merely quantitative (How much 
    yolk? Is this mummy-mouse teat as productive as that one?) but qualitative 
    (This is the way we break up prey animals
 This is the alarm cry for 
    snakes
).  
    Information, rather than just material, now passes from mother to offspring, 
    and we have invented culture. Wild dogs, meercats, possibly dolphins and parrots, 
    but especially primates like baboons have a rich social heredity that is learned 
    by the juveniles and passed on in their turn.  
     
    Do note that this is not mere intelligence. Many animal lineages have produced 
    relatively intelligent species, from cephalopod molluscs producing octopuses 
    and cuttlefish to stomatopod crustaceans producing the mantis shrimps, and 
    many others. While it is possible to produce rudimentary consciousness in 
    some of these by inventing reciprocal games (my experience with octopuses 
    and mantis shrimps is related in Figments of Reality), they have not been 
    selected for many generations for the ability to learn from their own species. 
    Rats, cats, dogs (and possibly some parrots  see Pepperburg 2000), and 
    especially the social primates exhibit this different kind of learning, honed 
    by generations of dependence on it  they seem to like it, to revel in 
    it. In the wild they not only show intelligence, their social groups have 
    a kind of communal extelligence which interacts with, instructs, the intelligence 
    of the progeny in each generation (Stewart and Cohen 1997).  
     
    And here we come close to the origins of human loving, because human groups 
    are pre-eminently extelligent, because humans are primarily The Privileged 
    Ape. Human cultures transmit most of their accumulating cultural capital  
    primarily language, but then knowledge of agriculture and other technologies, 
    myths and legends, mores and courtesies, as a broad stream of information 
    from most of the previous generation to this  
    and future ones: Our echoes roll from soul to soul, and grow forever 
    and forever
.  
     
    Note how little of what we  our extelligence  programmes into 
    each child is actually overt information. Language learning is primary for 
    all humans, and we have special brain regions which need organising by this 
    learning if we are to use language. But the nursery language is very far from 
    a coherent messageto offspring, it communicates affection as much 
    as message. And nursery myths and stories imbue the child with affective adjectives: 
    sly is the fox in Western tales, wise is the owl; 
    but for the Inuit the fox is brave and fast, the hero 
    of their stories but the villain in ours. The fox is an icon, with no relation 
    to the real biological fox; it is how we learn sly and cunning 
    (Shepherd ). Just as kittens eyes must receive retinal images for the 
    first few days after they open, for the brain circuits for later seeing to 
    be established, so human children seem to need this vast but inchoate cultural 
    input to be effective, affective beings. Think of it: no one would recommend 
    programming a computer with the kind of nonsense scribble that we all enjoyed 
    as children. Cuddly toys, from Teddy Bears to Wombles, inhabit all western 
    nurseries. Why?  
    How do we become rational beings after this poor beginning? Perhaps rationality 
    is not what its about.  
     
    Recent scientific models of the brain are far from the older bucket 
    to be filled educational images. We now know that the brain, like the 
    body, has many different organs within it, specialised in different directions 
    (Her and Him, The Adapted Brain). Although the auditory cortex can apparently 
    be persuaded to organise into columns like the visual cortex if the optic 
    nerves are encouraged to grow into it (Nature ), the normal human brain has 
    pre-organised regions with some striking, apparently built-in prejudices in 
    all human cultures (these are not genetic programmes - they presumably 
    wouldnt be there without some input to organise them, like language 
    or kittens vision). We all, even Eskimos, seem to prefer landscapes 
    like the African savannah when comparisons are flashed up on screens; we all 
    rather like sea-shores and swimming, which raises questions about whether 
    there was a period when we lived on the sea-shore and were indeed somewhat 
    aquatic.  
     
    But above all, we are all daft about babies. We see this as absolutely natural, 
    of course, because our brains are all wired to do it. However, even in the 
    context of our immediate relatives the chimpanzees, this is madly obsessional. 
    When chimps have intergroup fights (warfare, according to Jane 
    Goodall) they kill and eat the captured babies of the rival group apparently 
    without the qualms we experience even thinking about it. Other primates, the 
    langurs, have males who regularly kill the babies of previous dominant males, 
    and all the animals then eat them. Lions do this too. Indeed, many kinds of 
    female mammals have a trial first pregnancy, and regularly eat 
    their first litter. Many female mammals will, of course, accept replacement 
    babies  even of a different species  if their own babies have 
    been removed, but this is very different from our obsession with babies, baby-shapes, 
    cuddly toys.  
    Film makers exploit this: the later Mickey Mouse converged on to the outline 
    of a two-year-old child, as did ET! We are turned on by all baby 
    mammals  dogs and cats exploit this by becoming more and more juvenile-looking 
    as they become domesticated  from goats to lions, even by baby birds, 
    reptiles, even by tadpoles! Clearly, loving and protecting our own babies 
    is very good, very biological, very Darwin.  
    But why should we find our neighbours babies attractive, babies of other 
    human kinds even more attractive? Why should we buy dog food for our puppies 
    and put up with the parasitism of kittens, taking privilege from our own children? 
    My answer in The Privileged Ape was a kind-of genetic one: surviving babies 
    should be adopted because they have shown themselves resistant to local diseases 
    and should be good mates for your own progeny  your grandchildren will 
    be survivors too. I now think that a better answer (both may be true, 
    whatever that means
) is the one that leads to love.  
     
    Some ants make slaves of other ants (instead of killing and eating them). 
     
    This can only happen because those ants have lost (if they ever had) ways 
    of distinguishing us from them. Nearly all of the 
    lives of most of these ants does not include meeting strange ants, so the 
    discrimination has atrophied, and been lost. Some people make slaves of other 
    peoples (instead of killing them). This can only happen because they 
    are seen as potentially part of our culture.  
    Perhaps originally the australopithecines were like modern himpanzees, warfare 
    between small groups resulted in the deaths of the losers. However, the very 
    success of our extelligence has had a remarkable side-effect  nearly 
    everyone we see, nearly all the things that concern us are part of our in-group 
     as in an ant colony. So, paradoxically, distinguishing us 
    from them becomes less and less important as our growing culture 
    makes most of our interactions internal to the group. An adaptation like protect 
    any child you see becomes as good a maxim as protect your own 
    children at the expense of others. When most of the environment becomes 
    our environment, generalised inclusion of all children  
    including our symbiotic animals in agriculture, our mouser cats and our protective 
    dogs, becomes a good rule-of-thumb. It makes slavery possible, but then extension 
    of our extelligence makes emancipation mandatory.  
     
    There may, for most human cultures, have been an intermediate phase in which 
    puberty rites (for example, but there were other systematic behaviours too) 
    excluded those juveniles who could not identify with tribal mores. In general, 
    puberty rituals select the obedient, the child who is more frightened of the 
    imagined future than of the actual pain he (usually a he) is about 
    to suffer. By setting up and selecting for imagined punishments we have selected 
    ourselves for obedience to authority (Cohen 1989). This privilege 
    evolutionary story is in some ways more successful than the intellectual, 
    rational one which leads to Homo sapiens (wise man
). That 
    story starts Once upon a time there was a nerve cell
, goes 
    on Then it got some friends
, continues head ends and 
    brains
 and climaxes 
 and then we got Einstein!. 
     
    The privilege story explains Eichmann too. But its very equivocal about 
    democracy.  
     
    By selecting all of the members of our tribal group by the same rituals, we 
    immerse ourselves in a common culture which, for tribal societies (like the 
    pretend-Orthodox Jewish one I grew up in, in Londons East End) has every 
    behaviour either mandatory or forbidden. Primitive monotheism was a spiritual 
    externalisation of the one-culture extelligence (Abraham was the myth-figure 
    who did it for me). Our culture saw the goyim around us as definitely other. 
    However, as the extelligence takes in more and more of the world of each person, 
    we are trained to see human commonality around us. We learn to make ourselves 
    more flexible, to appreciate more of the technical and the human world around 
    us. Some of us are lucky enough to become teachers, and take the responsibility 
    for extending our love to many students. We even learn to see other cultures 
    as the same as ours, not the inimical other. I believe the resemblance 
    to our diffuse cuddlychildlove is not accidental, but a parallel 
    extension of our realisation of more and more of the world partaking of the 
    nature of our world.  
     
    Now the synthesis, to try it out on you. We have, like all animals, special 
    behaviour and special feelings about mate- attraction and mating and breeding, 
    different from the ordinary maintenance-of-life (vegetative in 
    biology-speak) feeding and finding shelter. We have brought this suite of 
    pleasurable feelings into our love-for-children, our love-for- relatives, 
    our love-for-cultural-group so that the pleasure we are selected to feel in 
    these relationships reinforces them, makes us inclined to sacrifice feeding 
    opportunities (or whatever other vegetative activities) for the good feelings 
    these activities excite in us. Most of us soon learn that these reinforcements 
    can be extended further, not only stroking cats and walking the dog, cuddling 
    our children and mates, but taking pride in our football team, our country, 
    our humanity.  
    Some of us go further, achieving that joy by appreciation of the human context 
    in space and time. We joy in Earths variety of life, we regret and attempt 
    to ameliorate our destruction of the environment. We appreciate our civilised 
    context, which exchanges deaths of children for menstrual periods (most of 
    our female ancestors alternated pregnancy and lactation). We realise that 
    the environment was our context until very recently, but that the very success 
    of our extelligence makes us the most important context for Earths environment. 
     
    We must manage it, extend our love to it.  
    We joy in that ancestral fish who came out of the water and whose lineage 
    made the land vertebrates; we treasure our airway-crossing-our-foodway and 
    remember that fish each time we cough. We wonder at that fishs anatomy, 
    which mixed up its excretory and reproductive systems and made sex a dirty 
    business for its extelligent descendants. We have dirty books, more interesting 
    novels because of that concatenation of organ systems in that crucial ancestor 
    (other fishes in those seas had different anatomies
). We marvel at dinosaurs, 
    at the meteorite impact that gave mammals their best chance at learning-in-the-nest 
    (trial and, for the first time, non-fatal error!) and that started our extelligence. 
    We even marvel at, and extend our love to, our descendants in imagined futures. 
     
    I think we do that because of our biological history, the brain organs we 
    have selected for during our long history of intelligence and then extelligence. 
    The loss of vegetative security which love engenders, and the joy it brings 
    as we extend it further and further, are the strongest motivators of all of 
    us people.  
     
    Love is what we are, now.  
     
     
  Jack Cohen 
   
    REFERENCES  
     
    COHEN, J. (1989) The Privileged Ape; cultural capital in the making of Man. 
    'Frontiers of Thought' series (ed. V. Serebriakoff). Carnforth, Lancs: Parthenon 
    Press.  
     
    COHEN, J. AND STEWART, I. (1994) The Collapse of Chaos; simple laws in a complex 
    world New York: Penguin, Viking  
     
    EINUM, S AND FLEMING I A (2000) Highly fecund mothers sacrifice offspring 
    survival to maximize fitness. Nature 405 565-7  
     
    NESSE, R. (1999) Tangled up in blue: the rocky road to relationships. Science 
    and Spirit Magazine 10 32
46  
     
    PEPPERBURG, I (2000) The Alex Story  
     
    1999 PRATCHETT, T, STEWART, I AND COHEN, J The Science of Discworld. Ebury 
    Press  
     
    SHEPARD, P (1986?) Thinking Animals  
     
    1997 STEWART, I and COHEN, J.. Figments of Reality; the origins of the curious 
    mind Cambridge University Press.  
     
    2000 STEWART, I and COHEN, J. Wheelers. (Time-Warner. In press, expected Oct 
    2000) 
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