Ukraine is a country in Eastern Europe. It is the second largest country in Europe after Russia, which borders it to the east and north-east. Ukraine also shares borders with Belarus to the north; Poland, Slovakia, and Hungary to the west; Romania and Moldova to the south; and has a coastline along the Sea of Azov and the Black Sea. It covers about 600,000 km2, with a population of about 40 million.
Ukraine contains six terrestrial ecoregions: Central European mixed forests, Crimean Submediterranean forest complex, East European forest steppe, Pannonian mixed forests, Carpathian montane conifer forests, and Pontic steppe. There is somewhat more coniferous than deciduous forest. The most densely forested area is Polisia in the northwest; with pine, oak, and birch. There are 45,000 species of animal, with approximately 385 endangered species listed in the Red Data Book of Ukraine. Internationally important wetlands cover over 7,000 square kilometres, with the Danube Delta being important for conservation.