Hemocytes are a type of white blood cell that can be found in invertebrates, such as mollusks, insects, and crustaceans. They have a range of functions that are important for the animal’s survival and health, including phagocytosis (the ability to eat up and digest foreign materials or pathogens), the production of antimicrobial peptides, and the formation of a physical barrier to protect against infections. Hemocytes also play a role in wound healing and tissue repair, as well as the activation of the immune response. Furthermore, hemocytes have been used as a valuable tool for understanding the biology and evolution of invertebrates.