Invertebrate viruses are viruses that specifically infect invertebrate animals, which include organisms like insects, crustaceans, and mollusks. These viruses can cause various diseases in their hosts, often leading to significant impacts on populations and ecosystems. Some well-known examples include the Nuclear Polyhedrosis Virus and the White Spot Syndrome Virus, which affect insects and shrimp, respectively. These viruses can be transmitted through direct contact, ingestion, or environmental exposure. Research on invertebrate viruses is important for understanding their role in biological control and aquaculture, as they can be used to manage pest populations or improve the health of farmed species.