• The Original Sea-Monkeys On Mars are instant pets! • Includes On Mars tank, water purifier, instant live eggs, food, aquarium, feeding spoon; just add water! • Sea-Monkeys can grow up to 2cm long! • Encourages interest in science, biology and the ocean! • An ideal first pet to learn about responsibility all without the mess! Welcome to Mars, where your Sea-Monkeys will grow and live in Outer Space! Watch them develop and swim around their Martian landscape through the tank\'s magnifying lid! Sea-Monkeys are a type of tiny brine shrimp created by scientists in the 50s. These sci-fi creatures\' eggs are held in a kind of suspended animation called Cryptobiosis until you activate them in your Sea-Monkeys aquarium using the kit provided with every tank. Sea-Monkeys are an educational living science experiment that kids and adults have loved ever since they were created. Activating the eggs is a valuable opportunity to learn from seeing biology in action, and fascinating to watch for all ages. Once your Sea-Monkeys hatch you will be able to observe their full life cycle in real time, watching them grow as you feed them. Sea-Monkeys are a great present for children who want a pet. Your kids will learn the importance of caring for living things and their environment, all on a manageable scale. Additional details: Packaging size: 190mm x 140mm x 125mm Recommended age: 6+