Abstract
Organic appearances are largely neglected by contemporary biology; partly because they are regarded as superficial effects of causes concealed beneath the surface. The persuasion that everything what does exist is existent for some immediately non-apparent reasons belongs to a general belief of modern science. All organisms are of the same evolutionary origin and of the same world wherein appearance coincides with existence. In this study, living beings are approached as appearing centers of experience that reflects their evolutionary history. From biohermeneutic point of view the evolution of organisms, interactions between organisms, and their relationships to environment is understood as “evolution of interpretations”. I use simple conceptual framework of perception, semiotic co-option, and modification to explain the evolution of semantic organs, i.e. organs that operate through the meaning that was given to them by an animal interpreter.