Excuse me . . . my mortality is showing: meditations on life and death

Have you ever wondered why so many Americans wear clothing when it's warm outside? Are they really covering up for sexual propriety—because of shame? Or could it be that they are wearing clothes to cover up their animal-ness-- their mortality? I'm intrigued by this issue, as you can tell from my previous writings, including my posts about "terror management theory," and nipples. This issue came to mind again recently when I found a website that allows you to completely undress people. The site has nothing to do with sex, I can assure you, but it has a powerful set of images that raise interesting questions about human nakedness. To get the full experience, go to the website and select an image of a fully clothed person. These are absolutely ordinary looking people, as you will see. Then click on the images of any of these men or women and watch their clothes disappear. If you are like me, when their clothing disappears, this will not cause you to any think sexual thoughts. If you are like me, you will find yourself thinking that these people looked more "attractive" with their clothes on. For me, the effect is dramatic and immediate, and it reminded me of a comment by Sigmund Freud (I wasn't able to dig out the quote), something to the effect that we are constantly and intensely attracted to the idea of sex (duh!), but that sex organs themselves often look rather strange to our eyes--sex organs are not necessarily sexy. I think the same thing can be said for our entire bodies. Nakedness isn’t the same thing as sexuality or else nudist colonies would tend to be orgies (which, from what I’ve read, they are not). Rather, sexual feelings are triggered by the way we use our bodies. We do many things that are sexual, and most of these things take some effort. Simply being naked is not an effective way to be sexy. In America, people constantly confound nudity with sexuality. I admit that the media presents us with many ravishing image of sexy naked people, but the sexiness of such images is not due to the mere nakedness. There’s always a lot more going on than mere nakedness. Consider also, that when people actually mate, they often bring the lights down low, further hiding their bodies. Then why do Westerners cover up with clothing to be "proper"? I suspect that anxiety about death (not so much anxiety about sex) contributes to our widespread practice of hiding those naturally furry parts of our bodies—those parts associated with critically "animal" functions relating to reproduction and excretion of body wastes. [More . . .]

Continue ReadingExcuse me . . . my mortality is showing: meditations on life and death

Creative denial of mortality as an evolutionary adaptation?

The August 6, 2009 edition of Nature (available online only to subscribers) includes a fascinating letter by Ajit Varki, a Professor of Medicine and Cellular & Molecular Medicine at the University of California San Diego, La Jolla. Varki begins his letter by recognizing some of the unique features of human animals, such as theory of mind, "which enables inter-subjectivity." These impressive human cognitive abilities might have been positively selected by evolution "because of their benefits to interpersonal communication, cooperative reading, language and other critical human activities." Varki then describes his conversations with a geneticist named Danny Brower (now deceased), who was fascinated with the question of why theory of mind emerged only recently, despite millions of years of apparent opportunity. Brower offered Varki a tantalizing explanation for this delay:

[Brower] explained that with the full self-awareness and inter-subjectivity would also come awareness of death and mortality. Thus, far from being useful, the resulting overwhelming fear would be a dead end evolutionary barrier, curbing activities and cognitive functions necessary for survival and reproductive fitness. . . . in his view, the only way these properties could become positively selected was if they emerged simultaneously with neural mechanisms for denying mortality.
In other words, self-awareness is a double-edged sword that tends to kill off (through terror-induced paralysis) those who become too readily self-aware. Therefore, self-awareness evolved together with denial of death--Brower was suggesting that those who became too clearly self-aware would become incapacitated by something of which chimpanzees, dolphins and elephants remain blissfully ignorant: the fact that they will inevitably die. Image by Puroticorico at Flickr Varki suggests that Brower's idea would not only add to ongoing discussions of the origins of human uniqueness, but it could shed light on many puzzling aspects of human psychology and culture:
[I]t could also steer discussions of other uniquely human "universals," such as the ability to hold false beliefs, existential context, theories of afterlife, religiosity, severity of grieving, importance of death rituals, risk-taking behavior, panic attacks, suicide and martyrdom.
Perhaps we are simply incapable of viewing life "objectively," in that evolution has rigged us up with equipment that protects us by deluding us. It seems, then, that the co-evolution of delusion and awareness (if this is the case) dovetails quite well with Terror Management Theory (TMT), which I summarized in a post entitled "We are gods with anuses: another look at “terror management theory”:

The problem is that the evolution of our powerful ability to be conscious made us aware that we are mortal beings and that all of us are heading toward inevitable death. The “solution” is also offered by our highly developed cognitive abilities: we have developed the ability to wall off our cognitively toxic fear of death by “objectifying” our existences and living idealized lives free from fear of death.

Brower and Varki thus suggest that the ability of humans to be extraordinarily aware and curious is too dangerous to be dispensed by evolution in its pure form. Too much knowledge can might be too dangerous. To safely allow the continuation of the species, human awareness might need to be deluded and distorted in ways that account for some of the most baffling "cultural" aspects of what it means to be human. Image by Latvian at Flickr (creative commons) This approach sounds promising to me, though it also raises many other questions, such as this one: Why are some of us apparently immune from these delusions? Why are some of us much more able to disbelieve claims of gods and afterlives?

Continue ReadingCreative denial of mortality as an evolutionary adaptation?

Why it matters that humans are animals.

I have written numerous posts advocating that because humans are animals they should be recognized as such (for example, see here , here, here , and here). For zoologists and others who study animals, it is obviously true that we are animals. We do hundreds of things that the other mammals do, plus a few extra. You can see it every day when you eat, breathe, emote, poop, become fatigued and fall asleep. Yet millions of Americans are horrified by the thought that human beings are animals. Consider that we aren’t simply animals. Our species is a carefully defined type of animal. We are apes. Frans de Waal explains:

Darwin wasn't just provocative in saying that we descend from the apes—he didn't go far enough . . . We are apes in every way, from our long arms and tailless bodies to our habits and temperament.

If you want even more detail on what type of animal humans are (we are in the ape sub-division of primates), watch this brisk video by Aron-ra. Again, this sort of information is really disturbing to many people, especially religious conservatives. So why don't I simply leave religious conservatives alone? Why do I persist on standing on rooftops and proclaiming this message that humans are animals? Why don't I just whisper this sort of information only to my closest of friends: "Pssst. Human beings are animals." Why don't I just let it be, and keep it all to myself? What could possibly be at stake that I feel compelled to spread the word that human beings are animals? I was in the process of assembling my own list when I just happened to read Chapter 12 of Mark Johnson's new book, The Meaning of the Body: Aesthetics of Human Understanding. Johnson is well known for his work with metaphors and embodied cognition with George Lakoff. Chapter 12 of his new book contains a section that leaped out at me: "The Philosophical Implications of the Embodied Mind." In that short section, Johnson sets forth nine reasons why it really and truly matters for people to acknowledge that they are animals and to fully accept that their minds are embodied, not free-floating entities independent of physical laws. Johnson's biggest target is the "objectivist theory of meaning," the idea that meaning "gets defined without any connection to the experience of the creature (i.e., the human) for whom the words are meaningful. Johnson points out that those who follow the objectivist theory of meaning believe that words and sentences somehow "carry" meaning without even trying to explain how words and sentences ever come to acquire meaning. It should send up immediate red flags that the predominate theory of meaning relies on floating thoughts, a theory of meaning that is not biologically anchored. Reacting to (and rejecting) this objectivist approach, Mark Johnson premises his analysis "with a mind that is not separate from or out-of-ongoing-contact with its body and its world." His worldview includes a specific definition of body and his impressive list of why it matters for human beings to take seriously "the embodiment of mind and meaning." Here are those reasons (I will be borrowing liberally from Johnson's book with these descriptions, beginning at page 279):

Continue ReadingWhy it matters that humans are animals.

Creationists blather their way through Darwin Day

If you visit Ken Ham's creationist site, you'll see an article titled, "Did humans really evolve from ape-like creatures?" Here's a key concern raised in this article:

Perhaps the most bitter pill to swallow for any Christian who attempts to “make peace” with Darwin is the presumed ape ancestry of man.

It's difficult to believe the ignorance displayed by this sentence. Why can't creationists understand that not only did humans evolve from other ape-like creatures (the scientific evidence is abundant and irrefutable), but that humans are apes. Check the features listed here:

The similarities can be seen throughout our bodies. For instance, humans and the African apes all lack external tails and have hands with a thumb that is sufficiently separate from the other fingers to allow them to be opposable for precision grips. Humans are also sexually dimorphic--males are 5-10% larger on average and have greater upper body muscular development. Like chimpanzees and bonobos, we are omnivorous. We kill other animals for food in addition to eating a wide variety of plants. Internally, our bodies are even more similar to the great apes. We have essentially the same arrangement of internal organs and bones. We share several important blood types. We also get many of the same diseases.

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We are gods with anuses: another look at “terror management theory.”

Gods with anuses? This post concerns some of the elaborate ways humans seem to compensate for their anxiety about death. A 2008 Harris poll shows that 61% of Americans believe that Jesus was born to a woman who was a virgin. Thus, by a landslide margin, Americans believe that a woman named Mary got pregnant without any of that icky sperm/penis/vagina stuff (whether a human ovum was involved is keeping theologians busy ). To keep the Savior pure and holy, I can only assume that Jesus emerged into the world through some sort of Divine Cesarean rather than out of the vagina, but the Bible is not clear on the actual method of delivery. Ever since the alleged birth of Jesus, Mary (who was “without sin”) has been referred to as “Virgin Mary,” despite her long marriage to Joseph, suggesting that she kept Joseph sexually frustrated for the rest of his life. All of this uneasiness our animal nature is typical of many religions. In order to keep people focused on the other-world, religions work hard to convince people that human animal existence is vulgar and vile. According to many religions, our earliest “ancestors” were taught that human bodies were shameful even as they were being unceremoniously booted out of the Garden of Eden. Rather than considering our bodies to be exquisite machines that constitute and sustain us, many religions portray human bodies as ungainly, oozing, disgust-inducing earth-bound vessels from which we will eventually escape, thanks be to God! We are to God as slugs are to us. Rather than embracing the marvelous functioning of human bodies, many religions disparage them though, paradoxically, they attribute the “design” of our sordid bodies solely to God, not to natural selection. Thus, there is one notable exception to the general rule: only when Believers are trying to fight off Darwin do they consciously strive to appreciate the exquisite function of human bodies. Oh, such a tangled web religions weave . . .

Continue ReadingWe are gods with anuses: another look at “terror management theory.”