The Center for Studies on Invertebrates and Vertebrates of the Amazon (NEIVA) was created as a research group on June 22, 2016. Over time, NEIVA has been consolidated and has progressively obtained resources from funding agencies, thereby supporting teaching, research, and extension activities at the Federal Institute of Education, Science, and Technology of Amazonas (IFAM) and the Federal University of Amazonas (UFAM). This book represents the consolidation of research work developed over the years during the formation of NEIVA. Research with different groups of animals from the Amazon region is addressed, involving studies by undergraduate, master's, doctoral, and postdoctoral students, as well as professors. We aim to contribute to the region through research focused on the sustainable use, conservation, and animal production.