My research paper is to explain why animals should be spayed and neutered. There

My research paper is to explain why animals should be spayed and neutered. There should be a title, a introductory paragraph(two is acceptable for explanatory information) and a concluding paragraph. The thesis statement should explicitly express my stance (Animals should be spayed and neutered). There should be at least 3 regular body paragraphs. There should be 1 paragraph that shows the opposite way of a animal should not be spayed and neutered and a concession of why they should be spayed & Nurtured. There should be proper citation for both paraphrases and direct quotes, should be in proper MLA physical format. Also contain a works cited page( that is numbered consecutively with the paper and arranged alphabetically). The sources I already have are: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6523704/
https://www.animalhumanesociety.org/resource/pros-and-cons-spaying-or-neutering-your-dog-or-cat-early-age
https://www.aspca.org/pet-care/general-pet-care/spayneuter-your-pet
I need 1 or 2 more sources on the topic.