I received an e-mail from a former grad student in my lab, a highly successful one now in a faculty position at another university, teaching parasitology, and this individual asked about this essay, which I'd handed out in one of my classes years ago. It took a while to find it, but here it is. I don't remember the date, but it was at least ten years ago.
Essay on the Death of
a Beetle
John Janovy, Jr.
In his
truly magnificent best-seller book, Lives
of a Cell, Lewis Thomas, nationally acclaimed cancer researcher and
president [at the time] of Sloan-Kettering
Cancer Center
in New York,
included a chapter entitled “Death in the Open.” He begins this chapter with a discussion of
road kills: “seen from a car window they appear as fragments, evoking memories
of woodchucks, skunks . . . etc.” His
essay addresses death as a natural phenomenon, and ends with a commentary on
humanity: “Less than half a century from now, our replacements will have more
than doubled the numbers. It is hard to
see how we can continue to keep the secret, with such multitudes doing the
dying.” The secret he is talking about
is that of the death of our fellow human beings, a truly “vast mortality” of
some 50 million a year.
Whenever I
develop an undergraduate laboratory exercise that involves the death of an
animal, even a beetle or an earthworm, and especially one in which students are
assigned the task of doing the killing, Thomas’ words come back to me, along
with those of E. O. Wilson (On Human
Nature) and Paul Fussell (Wartime). In his chapter on aggression, Wilson talks about the
dehumanization of fellow humans as a prelude to violence, especially in times
of social conflict. Fussell is more
explicit, using WWII as an example and citing ways in which we dehumanized our
enemies, thus desensitizing not only our soldiers, but also our citizens back
home. In my Field Parasitology course at
Cedar Point, in which we routinely sacrifice animals in order to discover
“who’s infected with whom,” the basic observations necessary to analyze any
parasitic relationship, I often end the semester with an extended discussion of
Thomas, Wilson, and Fussell, as well as some more modern cases involving
massive human destruction (Rwanda, Kosovo, Persian Gulf War, Operation Iraqi
Freedom, etc.) There is a simple reason
why I often feel that such a discussion is necessary: when you come to know an insect,
snail, or “minnow” rather intimately, and build your reputation on the
scientific study of their parasites, then it’s not so easy to dehumanize these
lowly creatures. These organisms with
which you do your first real research project, show someone you are truly
capable of conducting an original scientific investigation, earning your
guaranteed-get-in letter of recommendation to med school, suddenly become
valuable to you. They are no longer
worthless trash, they are no longer repulsive, they are no longer something you
have absolutely no feelings whatsoever for, but instead they become a part of
your emotional and intellectual library.
They’ve given their lives, yes, but they’ve also given you analytical
powers, power conveyed by experience, and the intellectual sophistication that
comes from doing research, that you would never have otherwise been given had
you not set about to study their parasites.
We choose
beetles, this week, because we grow them in large numbers, they are not
endangered, no permits are required for their use, and they are not like us
(furry, warm, with large eyes). For most
of you, this week’s lab will be the first, and perhaps the only, original
experience you will have with the distribution of infectious agents in a population
until your graduate from medical school, get into practice, and deal with a flu
or head lice epidemic. If this
prediction turns out to be true, then I hope you remember your lessons well. And if, as a “health care professional,” you
find yourself caught up in a military adventure, then you will find yourself
wishing you had studied the biology of infectious organisms over and over again
and been somewhat less enamored of reproductive physiology, cancer, and
cardiovascular function.
This
discussion leads, of course, to my rather smart-aleck comments about dead birds
at the bases of city buildings, and perhaps my unwise advice to simply pick up
a stunned bird and kill it. Those
comments were intended to accomplish one thing and one thing only: to vastly
increase your sensitivity to death at the population levels, and put into some
kind of rational perspective our use of beetles this week in lab. Actually, I was a little shocked at the
class’s reaction to those comments; I did not expect laughter. By way of comparison to the migratory bird
situation, about 32,000 Americans die each year of gunshot wounds. Another 42,000 die in automobile
accidents. From a biologist’s perspective,
especially a biologist who studies small organisms, the clearing of tropical
forests at the rate of 50-100 acres a
minute for the past 20 years results in the deaths of uncountable, but
truly beautiful and wondrous, organisms.
Fourteen thousand deer were struck by automobiles in Iowa last year, at a cost of about $3000 per
incident ($42 million a year in damage).
A friend of mine who regularly rode a bicycle along a country highway
and counted road kills, then extrapolated that sample to the national level,
estimated that at any one moment there would be 75 million birds lying dead on
America’s highways. I read a report
(unconfirmed) that house cats in Great Britain kill and estimated 60 million
song birds a year. [Note added in
retyping in 2009: The UNL population of feral cats is out of control as a
result of university policy to let it stay that way in order to keep the rabbit
and rodent populations in control.] The
Kearney Arch has cost one human life, and not too many years ago the Omaha World-Herald reported that the increase
in speed limits from 55 MPH to 65 MPH on I-80 resulted in approximately one
additional human death a month. The
speed limit is now 75 MPH. A visit to a
packing plant makes your hamburger and bacon look quite different than from
before the visit. And, of course, I have
not addressed the issue of quality of life for those still living who, for
various reasons, do not have access to the humanizing influences of quality
education, a safe place to sleep at night, adequate health care, and meaningful
employment. Into this latter category
fall millions of Americans and billions of other human beings around the world.
I’m not
condemning anyone for contributing to the above figures; I am, however, simply
reminding us that just by living our normal, 21st Century, human
lives, we contribute to the death of vast numbers of organisms and generally
ignore the deaths of vast numbers of human beings, all except, that is, the
ones closest to us. Thus it does not
bother me very much to use beetles to provide young people, many of whom will
become physicians, with their first scientific experience with infectious
organisms [we all have non-scientific experiences with infectious organisms].
On a more
personal level, I do appreciate the fact that an intimate encounter with death,
as when you cut the head off a meal worm, or separate a beetle’s head from its
body, can produce an emotional reaction.
In this particular case, you have chosen to terminate a life in order to
study something that most people find repulsive (a parasite), even though that
“repulsive” organism is living the most common way of life on Earth. I only ask that you remember this week’s lab
when your kid comes home from day care with lice or pinworms and you wonder how
to cure the infection (it’s not terribly difficult, at least in the case of
pinworms.)
Finally, as
a philosophical aside, as part of your overall education as a biological
sciences major, I strongly recommend a personal examination of your own reasons
for reacting as you do to the welfare of other organisms, be they insects or fellow
humans. I’m guessing that the closer an
organism is to you personally, or the closer in appearance and demeanor to
humans in general, or the younger the organism, then the stronger will be your
reaction to its death. This principle
figures prominently in politics and government regulations surrounding the use
of animals in research and teaching.
Thus the death of a baby cocker spaniel has an infinitely higher
emotional content than the death of a mosquito or cockroach, at least to the
average person. And if you contribute to
that death, then the puppy’s will probably linger in your mind for a lifetime,
whereas the mosquito and cockroach will be forgotten as soon as you get over
the pleasure, and probably smug satisfaction, of having killed them.