After contextualizing the biological work of Aristotle -its origin and current status, the writings that comprise it, and the research tools used by the Stagirite-, we proceed to identify the place of the human animal within the Aristotelian science of life. The relationship of man with other living beings and the cultural prejudices present in the biological treatises of the Philosopher are studied. As a corollary of the investigation, the logos is examined, which the Stagirite identifies as a key feature of human uniqueness, which leads us to explore two key issues: the vital principle of the human being and his particular way of being social or civic. Finally, we analyze if from the Aristotelian biological approach it is possible to speak of "transcendence" in the human animal, and in what sense.