Myo-viruses are a group of viruses that primarily infect bacteria, specifically targeting their cells. They belong to the family of bacteriophages, which are viruses that can kill bacteria. Myo-viruses have a distinct structure, characterized by a long, contractile tail that helps them inject their genetic material into bacterial hosts. These viruses play a crucial role in regulating bacterial populations in various environments, including soil and water. By infecting and lysing bacteria, Myo-viruses contribute to nutrient cycling and can influence microbial communities. Their study is important for understanding ecological dynamics and developing potential applications in biotechnology and medicine.