International Science Community Association Research Journal of Animal, Veterinary and Fishery Sciences 14 1 2026 05 24 Biomagnification of Pesticides and their effects on Animals 13 15 EN Hande Gayatri 1 Department of Zoology, Shri Shivaji Science College, Amravati- 444 603, MS India Tekode Rohit 2 Department of Zoology, Shri Shivaji Science College, Amravati- 444 603, MS India Priyamvada Kumari 1 Department of Zoology, V.K.S.U., Arrah, Bihar, India Sharma Sunita Kumari 2 L.N. College Bhagwanpur, Vaishali, Bihar, India Kumar Abhay 1 Department of Zoology, V.K.S.U., Arrah, Bihar, India Sharma Sunita Kumari 2 L.N. College Bhagwanpur, Vaishali, Bihar, India Kumar Kunal 1 Department of Zoology, V.K.S.U., Arrah, Bihar, India Sharma Sunita Kumari 2 L.N. College Bhagwanpur, Vaishali, Bihar, India > Short Communication 2026 3 10 2026 05 24 Biomagnification is a critical ecological process where the concentration of a toxic substance, such as pesticides, increases at each successive trophic level within a food web. This abstract briefly examines the biomagnification of persistent organic pollutants POPs like DDT and organochlorines, and their detrimental effects on animal health. These fat-soluble pesticides are ingested by primary producers and consumers, accumulating in their tissues. As predators consume large quantities of prey, the toxins become concentrated to dangerous levels in top predators. The effects on animals are severe and multifaceted. High toxin concentrations can lead to direct mortality, but more commonly cause sublethal effects including reproductive failure e.g., eggshell thinning in birds, neurological and behavioral abnormalities, immune suppression, and increased susceptibility to disease. This process disrupts entire ecosystems by weakening top predator populations and reducing biodiversity. Understanding and mitigating pesticide biomagnification is therefore essential for wildlife conservation and maintaining ecological balance. Copyright@ International Science Community Association