Today, the possibility of appointing any ontological boundary between humans and animals are questioned. For example, according to Darwin’s (and neo-Darwinians) theory of evolution, their existence are combined together not only through the similarity of bodily practices, but also through the convergence of emotional, rational and even ethical behavior, which previously has been attributed only to homo sapiens. A similar representation of interspecies continuity can be found in works of Świrszczyńska (poetic cycle: Matka i córka). Opportunity to verify the anthropocentric bias becomes an experience of care for offspring shared with animals. The convergence of human and non-human motherhood, allows the Świrszyńska’s heroine to open her life as a process of continuous exchange of forms, especially between species cohabitated alongside each other (human, dog, cat). It opens her also for a definitely fuller life, astonished in many ways. As then, when under the influence of the forces of nature, it determines the whole area of culture, as a field of biological survival and naturalistic morality, formed during evolution.