The Palearctic or Palaearctic's one of the eight ecozones dividing the Earth surface. Physically, the Palearctic's the largest ecozone. It includes the terrestrial ecoregions of Europe, Asia north of the Himalaya foothills, northern Africa, and the northern and central parts of the Arabian Peninsula. Major ecological regions The Palearctic ecozone includes mostly boreal and temperate climate ecoregions, which run across Eurasia from western Europe to the Bering Sea. European-Siberian region The… (More on Palaearctic)