👉 Gammar is a genus of marine crustaceans in the family Cichlidae. It includes several species, including the common crab and the freshwater crayfish (Crustacea). Gammar are known for their high metabolism rate, being able to consume large amounts of food in just one feeding period. Gammar are also known for their ability to regenerate tissues after injury or damage. This allows them to maintain a relatively long lifespan compared to other crustaceans that do not exhibit this