Due to its isolation from the rest of the world, Australia and Oceania has an incredibly high number of endemic species, or species that are found nowhere else on Earth. Plants native of Oceania are the eucalyptus, jacaranda, hibiscus, and breadfruit tree. Many of the most familiar animals native to Australia and Oceania are marsupials, among the endemic animals are the koala, kangaroo, and wallaby. Marsupials are mammals that carry their newborn young in a pouch. Almost 70 percent of the marsupials on Earth are native to Oceania. (The rest are native to the Americas.)