Socotra Archipelago, Republic Of Yemen, Indian Ocean

The long geological isolation of the Socotra archipelago and its fierce heat and drought have combined to create a unique and spectacular endemic flora. Botanical field surveys led by the Centre for Middle Eastern Plants (part of the Royal Botanic Garden Edinburgh) indicate that 307 out of the 825 (37%) plant species on Socotra are endemic, i.e., they are found nowhere else on Earth. The entire flora of the Socotra Archipelago has been assessed for the IUCN Red List, with 3 Critically Endangered and 27 Endangered plant species recognised in 2004.
One of the most striking of Socotra's plants is the dragon's blood tree (Dracaena cinnabari), which is a strange-looking, umbrella-shaped tree. Its red sap was thought to be the dragon's blood of the ancients, sought after as a dye, and today used as paint and varnish. Also important in ancient times were Socotra's various endemic aloes, used medicinally, and for cosmetics. Other endemic plants include the giant succulent tree Dorstenia gigas, the cucumber tree Dendrosicyos socotranus, the rare Socotran pomegranate (Punica protopunica), Aloe perryi, and Boswellia socotrana.
The island group also has a rich fauna, including several endemic species of birds, such as the Socotra Starling (Onychognathus frater), the Socotra Sunbird (Nectarinia balfouri), Socotra Bunting (Emberiza socotrana), Socotra Cisticola (Cisticola haesitatus), Socotra Sparrow (Passer insularis), Socotra Golden-winged Grosbeak (Rhynchostruthus socotranus), and a species in a monotypic genus, the Socotra Warbler (Incana incana). Many of the bird species are endangered by predation by non-native feral cats. While there are no native amphibians, the reptiles species are over 90 percent endemic to Socotra and include skinks, legless lizards, and one species of chameleon, Chamaeleo monachus.
As with many isolated island systems, bats are the only mammals native to Socotra. In contrast, the coral reefs of Socotra are diverse, with many endemic species.