claim: Yemen is the fourth-largest country in the Arabian peninsula.
evidence: The Formosan sika deer , , is a subspecies of sika deer endemic to the island of Taiwan .. sika deer. sika deer. endemic. Endemism. Taiwan. Taiwan. Formosan sika , like most of the terrestrial fauna and flora of Taiwan , arrived on the island during Pleistocene glacial periods when lower sea levels connected Taiwan to the Asian mainland .. Taiwan. Taiwan. Pleistocene. Pleistocene