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Antimicrobial resistance is recognized as one of the most important global human health problems in the 21st century. The balance between clinical need and resistance prevention is further compromised by agricultural antibiotic use as some countries have actively used colistin in animal production. Antimicrobial-resistant microorganisms have been found in humans, food, animals, plants, and the environment (water, soil, and air), and they can move between ecosystems. The problem of antimicrobial resistance is currently seen in the concept: One Health. This approach encourages interdisciplinary collaborative efforts that work locally. The beginnings of the mcr gene's presence in America dates to 2012 and the first report of disseminating the mcr-1 gene was described for Kelp gulls (Larus dominicanus) from Ushuaia, Argentina. It can be associated with the possible dissemination of the gene in the American continent through migratory birds. The mcr-1 gene is disseminated in countries, such as Argentina,

In birds, parental care and attachment period differ widely depending on the species (altricial or precocial), developmental strategies, and life history traits. In most bird species, parental care can be provided by both female and male individuals and includes specific stages such as nesting, laying, and hatching. During said periods, a series of neuroendocrine responses are triggered to motivate parental care and attachment. These behaviors are vital for offspring survival, development, social bonding, intergenerational learning, reproductive success, and ultimately, the overall fitness and evolution of bird populations in a variety of environments. Thus, this review aims to describe and analyze the behavioral and endocrine systems of parental care and newborn attachment in birds during each stage of the post-hatching period.