Academic Blanche Henriette Vinhaes Bittencourt, Commendator and native of Rio de Janeiro, has a trajectory marked by engagement in social, political, and legal causes in Brazil. She stands out as a defender of animal rights and is the author of the work Soberania Animal (Animal Sovereignty), which proposes an ethical reflection on the human role as guardian of life. The book was inspired by the thought of Peter Singer and engages with recent legislative advances in animal protection. She advocates for the legal recognition of the multi-species family and for the expansion of animal rights as sentient beings. Her work contributes to the strengthening of animal law and to a more ethical and just society.