Cherax is a genus of freshwater crayfish found primarily in Australia and New Guinea. These crustaceans are known for their vibrant colors and unique physical features, such as large claws and a hard exoskeleton. They inhabit rivers, streams, and lakes, playing an important role in their ecosystems by helping to recycle nutrients. There are several species within the Cherax genus, including the popular Cherax destructor, commonly known as the yabbie. These crayfish are often kept in aquariums and are also a popular choice for aquaculture due to their fast growth and adaptability to various environments.