number of extant species is estimated at between six and ten million; potentially over 90

, to the east by Afghanistan and Pakistan, to the south by the Persian Gulf and the Gulf of Oman

described species, or approximately 90% of the beetle species so far discovered. Key characteristics

area. Its southern border with the United States, stretching some 8,891 kilometres (5,525 mi

since mostly involved US and allied Afghan government troops battling Taliban insurgents. The war in Afghanistan is the longest war in US history.

by India to the east, Afghanistan to the west, Iran to the southwest, and China in the northeast

, it is Canada's most populous province, with 38.3 percent of the country's population, and is the second

, is the second largest province of the 31 provinces of Iran. It is in the southeast of the country

in the Soviet Union and China. It included massacres, the genocide of the Holocaust, strategic bombing,

), is a country located mostly in the southern half of South America. Sharing the bulk