This article aims to raise awareness of the concept of pet within the context of multispecies families, where we will talk about the recognition of pets as family members, a new typology that has generated many controversies and has been the subject of study since many dimensions. However, this research will be analyzed from the perspectives of plurality and affectivity, due to the active role of the pet within the family that by having specific and distinctive functions generates affinity ties

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... between its members. Accordingly, it is essential to conclude whether or not pets are part of the family, which can be determined by defining the terms of kinship and lineage; since this terminology has a different significance.