After reading two recent articles on animal intelligence, I
have been thinking about what separates us from our furred and feathered
friends—and what that means for our concept of intelligence.
Ladder of Nature |
The Brains of the Animal Kingdom by
@FransdeWaal appeared in The Wall Street
Journal last week. It seems that we
have now stopped giving animals intelligence tests based on anthropomorphic
concepts and started taking into account, “the animal’s special anatomy and
abilities.” Guess what? New test results show that they’re smarter
than we thought and much more emotional as well. The researchers’ findings “have started to
upend a view of humankind's unique place in the universe that dates back at
least to ancient Greece.”
Yesterday, The Boston
Globe published an article called, Make animals smarter? How brain science is
forcing a difficult question by @EmilyAnthes. This one talked about artificial brain
improvement and whether, if we humans perfect it, we should apply it to the
animal kingdom or reserve it for ourselves.
This idea of sharing greater intelligence is termed “animal uplift.”
These are fascinating articles that address a wide variety
of issues and challenges. Common to both, however, is the belief that humans
are at the top of the ladder because we’re better than animals at a whole
variety of things that include making and using tools, facial recognition, family
affinity, cooperation, mutual protection, and language. Scientist and author David Brin
(@DavidBrin1) notes in the Globe that an array of recent studies has shown apes, dolphins,
elephants, crows, and other creatures to be remarkably intelligent. He says, “. . . they all crowd up against a
glass ceiling that only one phylum has broken through. We’re the lucky ones, we made it through, and
we turn around and refuse to lend a hand?”
Blue Planet |
The question I ask is, how exactly do we know that humans
are at the top of the ladder? That we
have a unique place in the universe? I’m
not saying we’re not and we don’t. I’m
asking how we know. The tests cited in
both these articles demonstrate that we humans have drastically underestimated animal
cognition in a wide variety of areas. Sometimes
the animals even outperform humans. Octopuses,
for example, have learned to open childproof bottles. How good are you at that?
The only species we have been able to communicate with is
apes, because researchers taught some test subjects American Sign
Language. We cannot communicate with cetaceans
at all because they speak in frequencies both above and below what we can even
hear, much less replicate. And only
recently did scientists learn that elephant language goes down into the deep
sub-woofer zone that we can’t hear but only feel, vibrating in our bones.
Anthes concludes, “Aristotle’s ladder of nature is not just
being flattened; it is being transformed into a bush with many branches. This is no insult to human superiority. It is long-overdue recognition that
intelligent life is not something for us to seek in the outer reaches of space
but is abundant right here on earth, under our noses.”
The Big Array |
Yet, when we do look for intelligent life in outer space, we
search for signs of advanced technology, evidence that life forms at least as smart
as humans have evolved in exactly the same way and thus created the same, or
greater, level of technological advancement.
In essence, Project SETI's (Search for Extra-Terrestrial
Intelligence) Big Array is listening for an alien version of “Honey Boo Boo” being
broadcast out into space.
Let’s go on a little journey of the imagination. Let’s pretend that no humans live on earth—not
now, not ever. Considering the volume of
water on the planet’s surface, we can also imagine that the great whales are this
alternate world’s most intelligent life forms.
They have, after all, the biggest brains. They are followed in intelligence by the
smaller whales and dolphins.
Great Blue Whale |
Now, we know little about the true intelligence of whales,
their culture, or their family relationships.
They could be extremely intelligent.
They might be advanced spiritually.
They could have art forms we don’t recognize. They might even be telepathic. A cetacean version of Aristotle, Einstein,
Mozart, or the Dalai Lama may be swimming in the Pacific Ocean right now and we would
never be aware of it. What we do know from observation is that whales don’t use
tools as we do, build cities, or create technology. Thus they will never broadcast anything into
outer space, not even Animal Planet.
So an alien listening for signs of
intelligent life on this cetacean-dominated version of earth would hear absolutely
nothing—and conclude there is none.
I’m delighted to read that we are thinking more about animal
cognition and special animal abilities.
After all, the more we learn about what our furred and feathered friends can do, the more difficult it
should become to mistreat them. As
Anthes writes, “. . . we might want to consider the way we treat animals now,
regardless of their intelligence.” We
might also want to use our new knowledge to rethink our concept of alien
intelligence. Science fiction writers like Brin and Poul Anderson have done this for decades but their work is considered, well, fiction. When we finally learn how
to reach other planets, however, we may discover that its equivalent of whales, or
elephants, or octopuses is running the global show.
Thank you for your thoughtful article! I am a cognitive scientist who agrees with de Waal! I also agree with you and hope that all animals will be treated with kindness. (I specialize in mathematical cognition and would like to add, however, that animals do mathematics on a regular basis. It is an evolutionary mandate, as more food/less predators translate into survival. Clever Hans was brilliant at detecting cues, which should be recognized. Yet, he could most likely count and do elemental operations involving addition and subtraction as well. The more complex multiplication problems given to him were most likely too difficult of course but that does not mean the horse had no ability in that area. Incidentally, my former colleague at the University of Cambridge, Claudia Uller, recently conducted an experiment showing horses' ability to add and subtract.) All the best, Edel
ReplyDeleteI read the Times artile, and was lead here, and after reading both I had a few thoughts of my own.... if you care to read - http://bit.ly/13Icd0z
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