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This article undertakes a comprehensive analysis of the evolution of perceptions and treatments of nonhuman animals in modern societies, with particular emphasis on their sentience and fundamental rights. The research demonstrates how the growing recognition that nonhuman animals are sentient beings capable of feeling pain, pleasure and other emotions has stimulated significant ethical, cultural and legal debates around their protections and rights. The study discussed the guiding question: How do cultural and legal transformations influence the recognition of nonhuman animal rights and what are the implications for the future of animal welfare policies? The aim of this research was to understand the complex dynamics between evolving social perceptions and changes in legislation concerning nonhuman animals, analyzing how different societies have reformulated their laws and regulations to reflect greater consideration for animal rights and welfare. The research method used was an analysis of relevant literature and a review of international and national legislation and regulations. It was concluded that there has been significant progress in the legal protection of non-human animals, reflecting changes in social ethics and morality, although there are still challenges and gaps in current legislation. The research highlights the need for future analysis on the effective implementation of these laws and public education and awareness to promote respect for animal rights.
Morillas et al. (Wed,) studied this question.