Hatch your very own dinosaur with this amazing science set that lets you grow prehistoric triops. Considered living fossils, Triops are small crustaceans that first existed 300 million years ago. Now you can bring their prehistoric majesty into your own home. Using the hatching dish, food and triop eggs provided, you can begin growing your own dinosaurs. The triops should hatch within 18-30 hours. Attach the thermometer to the dish to monitor the temperature and when the triops have grown transfer them to the larger tank. A great way to introduce kids to life cycles and teach responsibility. Did You Know? The species of Triops in this kit, Triops australiensis, is an Australian native species of Triops, or "tadpole shrimp". It is sometimes called "shield shrimp", for its distinctive, oval body. The word "Triops" is derived from the Greek words for "three" (tria) and "eye" (ops), so named for the third eye in the middle of its head. Australian Triops can grow up to 90mm in length.