When animals are trained to function in a human society (for example, pet dogs, police dogs, or sports horses), different trainers and training cultures vary widely in their ability to understand how the animal perceives the communication efforts of the trainer. This variation has considerable impact on the resulting performance and welfare of the animals. There are many trainers who frequently resort to physical punishment or other pain-inflicting methods when the attempts to communicate have failed or when the trainer is unaware of the full range of the potential forms of human-animal communication. Negative consequences of this include animal suffering, imperfect performance of the animals, and sometimes risks to humans, as repeated pain increases aggression in some animals. The field of animal training is also interesting from a semiotic point of view, as it effectively illustrates the differences between the distinct forms of interaction that are included in the concept of communication in the zoosemiotic discourse. The distinctions with the largest potential in improving human-animal communication in animal training, is understanding the difference between verbal communication of the kind that requires rather high cognitive capabilities of theanimal, and communication based on conditioning, which is a form of animal learning that does not require high cognitive ability. The differences and potentials of various types of human-animal communication are discussed in the form of a case study of a novel project run by a NGO called Working Elephant Programme of Asia (WEPA), which introduces humane, science-based training and handling methods as an alternative to the widespread use of pain and fear that is the basis of most existing elephant training methods.

Play behaviour is notorious for constituting a much debated, yet little clarified field of research. In this article, attempts are made to reach conclusions on the relation between human play and the play of other animals (especially cat play), as well as on the very character of play. The concept of Umwelt is reviewed, as are definitions of animal play, categorization of animal play and the role of meta-communication in playful behaviour. For some, play is a symbol of everythingthat is good. The author of the current article does not deny that social morality may have originated from play behaviour, but stresses the existence of cruelty play, which leads to additional assumptions. Another notion that is treated in some detail is perceptual play, which proves to demonstrate complex semiotic play that is related first of all to signification. At the end of the article an alternative categorization of animal play is suggested, in which the fundamental role of mind games is emphasized. Throughout the text, examples of play behaviour are offered by the two domestic cats Muki and Maluca.

The object of study in the present article is birds, more precisely the sounds of birds as they are represented in Estonian nature writing. The evolutionary and structural parallels of bird song with human language are reviewed. Human interpretation of bird sounds raises the question, whether it is possible to transmit or “translate” signals between the Umwelts of different species. The intentions of the sender of the signal may remain unknown, but the signification process within human Umwelt can still be traced and analysed. By approaching the excerpts of nature writing using semiotic methodology, I attempt to demonstrate how bird sounds can function as different types of signs, as outlined by Thomas A. Sebeok. It is argued that the zoosemiotic treatment of nature writing opens up a number of interesting perspectives that would otherwise remain beyond the scope of traditional literary analysis.

The present article discusses different basic semiotic-scientific postulates regarding mammals’ sign activity. On the one hand, there are arguments denying animals sign activity, according to which mammals are not capable of semantic generalization on the basis of conventional linguistic values. According to another approach, mammals’ sign activity can be considered as means of ecological adaptation, that is, the features of animal behaviour based on the information, received by them through their habitat characteristics without direct visual contacts with their kind. Movement elements, behavioural reactions of similar motivation and parameters of the sign field, which represents an animal’s sign-information environment, may have some numerical expression and can becalculated depending on the research tasks. Formalization of the animal activity implies simultaneous consideration of the following parameters: magnitude,intensity, anisotropy and the value of a given sign object.

In the work of Lorenz we find an initial phase of great concordance with Uexkülls theory of animals’ surrounding-world (Umweltlehre), followed by a progressive distance and by the occurrence of more and more critical statements. The moment of greater cohesion between Lorenz and Uexküll is represented by the work Der Kumpan, which is focused on the concept of companion, functional circles, social Umwelt. The great change in Lorenz’ evaluation of Uexküll is marked by the conference of 1948 Referat über Jakob von Uexküll, where Lorenz highlights the vitalist position of Uexküll. In the works of the years after World War II, the influence of the Estonian Biologist greatly diminishes, even though Lorenz continues to express his admiration for particular studies and concepts of Uexküll. References to Uexküll’s work are less and far in between, while the difference is highlighted between the uexküllian theoretical frame (vitalistic) and Lorenz’s one (Darwinian and evolutionist). The two main critical lines of argument developed by Lorenz in this process are the biological and the epistemological one: on the biological side Lorenz heavily criticizes Uexküll’s vitalism and his faith in harmonizing forces and supernatural factors (which leads to concepts such as the perfect fusion of all biological species in their environment and the absence of rudimentary organs). On the epistemological side, Lorenz, arguing from the point of view of the critical realism, accuses Uexküll of postulating the separateness of all living beings, a separateness which is due to the Kantian idea that every subject of knowledge and action is imprisoned in the transcendental circle of its representations and attitudes.

The theory of opposition has always been viewed as the founding principle of structuralism within contemporary linguistics and semiotics. As an analytical technique, it has remained a staple within these disciplines, where it continues to be used as a means for identifying meaningful cues in the physical form ofsigns. However, as a theory of conceptual structure it was largely abandoned under the weight of post-structuralism starting in the 1960s — the exception tothis counter trend being the work of the Tartu School of semiotics. This essay revisits opposition theory not only as a viable theory for understanding conceptual structure, but also as a powerful technique for establishing the interconnectedness of language, culture, and cognition.