Metagenomics is a field of study that involves the study of genetic material recovered directly from environmental samples, such as soil, water, and air, rather than from individual organisms grown in the lab. This approach allows researchers to study the genetic diversity and functions of entire microbial communities in their natural habitats. Metagenomics has been used to study a wide range of environments, from the human gut microbiome to deep-sea vents, and has provided valuable insights into the roles of microorganisms in ecosystems, human health, and biotechnological applications. This field has greatly expanded our understanding of microbial diversity and potential applications in fields such as medicine, agriculture, and environmental remediation.