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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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