The Galapagos Islands are perhaps best known for their curious and approachable wildlife, but there are 560 native species of plants in the islands—plants which arrived in the islands by natural means. And of these, 180 are endemic to the islands, meaning they are found nowhere else. The islands, formed by volcanoes, have a wide variety of climates and vegetative zones each hosting a unique set of flora and fauna. The desert-like lowland areas between the coasts and the higher-altitude areas are home to the aptly named lava cactus and lava morning glory.