THE FAMED SCIENTIST EXPANDS UPON HIS PREVIOUS WORK
Author and professor Donald Griffin wrote in the Preface to this 1992 book, “This book will review evidence of versatile thinking by animals, and of equal significance will be a representative sampling of the wide range of scientific and scholarly opinion about animal minds. This spectrum of strongly advocated views demonstrates the basic importance attached to the nature of animal mentality by both scientists and philosophers. Cognitive ethology, the analysis of cognitive processes in nonhuman animals, has attracted thoughtful and constructive contributions from fields as diverse as behavioral ecology and the philosophy of mind… Many students of animal cognition avoid consideration of whether animal cognition is ever accompanied or influenced by conscious thinking. But because conscious awareness adds so much to an unconscious ‘sleepwalker’ existence, it is important to consider evidence suggesting both cognitive processes and conscious thinking.”
After recounting an instance of two lionesses chasing and killing a wildebeest, he explains, “A single observation such as this one cannot be taken as conclusive proof of intentional cooperation, but it is certainly very suggestive. Why else should the first two lionesses have climbed to conspicuous positions and waited where the wildebeest could easily see that they presented no serious danger? Why should a third lioness sneak so furtively along the ditch to a position about midway between the two groups of wildebeest?... The individual elements of group hunting behavior … have been observed by others… yet the ethologists who report detailed observations of lion behavior have been so reluctant to infer conscious intent to cooperate that they seem to have refrained from reporting as much of this type of behavior as they have actually observed.” (Pg. 65)
He suggests, “Despite the lack of completely conclusive evidence, it seems plausible that nest-building birds have some simple conscious desire and intention to produce an appropriate structure. Genetic influences may determine the general pattern of the desired result, but birds certainly vary their behavior as they work to achieve this goal. Although their efforts are not always totally efficient, and human observers can often imagine how they might do somewhat better, the birds give every indication of trying to achieve an anticipated goal.” (Pg. 80)
He notes, “It is unfortunate that [Irene] Pepperberg’s pioneering work is based on the behavior of a single bird [named ‘Alex’]. To date no one else has apparently attempted to replicate Pepperberg’s experiments, but she has begun to extend her experiments to include another parrot. Both steps are highly desirable, but pending such essential replication we can inquire as critically as possible what flaws might have escaped our notice. The first thought of any student of animal behavior is that some sort of inadvertent cuing may have taken place, that Alex may not have responded to the actual properties of the objects he was shown but to some unrecognized behavior of the trainer who presented the objects and asked the questions, something analogous to the cuing that explained the apparent ability of Clever Hans to perform feats of mental arithmetic. Such inadvertent signals would have to be quite subtle, some gesture that Alex took to mean he should say ‘same,’ ‘blue,’ ‘wood,’ ‘none,’ or any of the several other words he had learned.” (Pg. 173)
He states, “Adaptiveness is a completely separate matter from the possibility of conscious thinking. Because mantis shrimp are crustaceans a few centimeters in length, it is assumed a priori that they cannot possibly be conscious. Even when they are shown to engage in moderately complex and versatile behavior, these data are forced into the procrustean bed of mindless automatism. Yet mantis shrimp have well-organized central nervous systems, and while their neurophysiology has not been studied in detail it is unlikely to be very different from that of crayfish, which have all the basic mechanisms of synaptic interactions that are found in the central nervous systems of all complex animals.” (Pg. 200)
He reports, “The implications of the discovery that chimpanzees and other Great Apes could communicate in even a rudimentary form of language were truly shattering to the deep-seated faith in language as a unique human attribute separating humanity from the beasts. As a result, a series of heated controversies continues to rage over the degree to which the communicative behavior learned by apes is actually a simple form of language. Many criticisms of the earlier experiments with apes have been significantly constructive, and have led to a sharpening of scientific understanding of human language and its acquisition by young children. They have also led to improved and better controlled investigations of the communicative behavior of the apes, and these in turn have served to overcome many of the criticisms of the earlier studies. On balance, it now seems clear that apes have learned to communicate simple thoughts.” (Pg. 219)
He continues, “Nevertheless some critics have pointed out that apes are very adept at detecting inadvertent cues from their human companions, and that it is conceivable that even in these blind tests the ape could have received information about which sign to produce from unintentional sounds or movements of the observers. It is also conceivable that they could have inadvertently conveyed information to each other about what sign was appropriate… Although every sort of precaution and repeated checking of all possible sources of error are always appropriate, these criticisms seem quite far-fetched, and later experiments of [Sue] Savage-Rumbaugh and her colleagues … render explanations based on inadvertent cueing extremely implausible.” (Pg/ 220)
He says, “Still another feature of human language is generally believed to be lacking in all animal communication systems, including those of the signing apes, is creativity, that is, the ability to conceive and convey new messages, different from anything ever thought or said before. It is often claimed that an animal’s communication is limited to a few relatively fixed signals that are genetically determined, and that it is incapable of producing novel communicative signals in newly arisen circumstances. Not all animal signals are rigid and invariant; in fact, one contrast with human language that is often emphasized is the graded nature of many animal signals that are believed to be expressions of emotion varying only in intensity but lacking any semantic content. As mentioned above, a few clear exceptions to this generalization are now known, such as the semantic alarm calls of vervet monkeys…” (Pg. 226)
He observes, “We usually suppose that animal thinking must be a simpler version of our own thinking about the animal’s situation. But there is really no reason to assume that animal thoughts are rigorously realistic. Apes and porpoises often seem playful, mischievous, and fickle, and anything but businesslike , practical, and objective. Insofar as animals think and feel, they may fear imaginary predators, imagine unrealistically delicious foods, or think about objects and events that do not actually exist in the world around them… As we try to imagine the content of animal thoughts, we should consider the possibility that their thoughts, like some of ours, may be less than perfect replicas of reality. Animals may experience fantasies as well as realistic representations of their environments.” (Pg. 258)
He concludes, “I am confident that with patience and critical investigation we can begin to discern what life is like, subjectively, to particular animals under specific conditions, beginning with the sorts of evidence reviewed in previous chapters. Cognitive ethologists can certainly improve greatly on these preliminary inferences, once the creative ingenuity of scientists is directed constructively toward the important goal of answering [Thomas] Nagel’s basic question, What is it like to be a bat, or any other animal? Contrary to the widespread pessimistic opinion that the content of animal thinking is hopelessly inaccessible to scientific inquiry, the communicative signals used by many animals provide empirical data on the basis of which much can be reasonably inferred about their subjective mental experiences. Because mentality is one of the most important capabilities that distinguishes living animals from the rest of the known universe, seeking to understand animal minds is even more exciting and significant than elaborating our picture of inclusive fitness or discovering new molecular mechanisms. Cognitive ethology presents us with one of the supreme scientific challenges of our times, and it calls for our best efforts of critical and imaginative investigation." (Pg. 260)
This book will be of keen interest to those studying animal minds, and related topics.