Brine shrimp are small, aquatic crustaceans that thrive in salty environments, such as salt lakes and salt flats. They are known for their ability to survive in extreme conditions, including high salinity and low oxygen levels. Brine shrimp are often used as a food source for fish and other aquatic animals in aquaculture and aquarium settings. These tiny creatures are typically about 1 to 2 centimeters long and have a distinctive, elongated body with a series of legs that help them swim. Brine shrimp are also famous for their ability to produce dormant eggs, known as cysts, which can survive for years in a desiccated state until they are rehydrated in water.