The Red Crab, scientifically known as *Gecarcoidea natalis*, is a species of land crab found primarily on Christmas Island in the Indian Ocean. These crabs are known for their vibrant red color and can grow up to 4 inches in width. They are famous for their annual migration to the sea to breed, which can involve millions of crabs moving across the island. Red crabs primarily feed on fallen leaves, fruits, and other organic matter, playing a crucial role in the ecosystem by helping to decompose plant material. Their unique life cycle includes a larval stage that develops in the ocean before returning to land as juvenile crabs.