Abstract
A recent attitudinal change towards animals has led many people to recognize their family structures as multispecies families, that is, a family composed of human members and animals of other species, united by affective ties, and solidarity, in a horizontal relationship, and even where there is mutual recognition. This social phenomenon requires that the legal concept of family, which today more than ever accepts the plurality of family structures, also includes multispecies families. The protection of multispecies families is necessary and possible if one considers that in Latin America today, a post-positivist legal system prevails that is aimed at protecting fundamental rights and freedoms. This legal system allows for a broad interpretation of rights such as the right to free development of personality and the right to family integrity, rights that already serve as foundational for the recognition and protection of multispecies families in Latin America.