Lions occur throughout that region, except in the equatorial rain forest and in the heavily populated regions along the southern coast of the western portion of the continent (see map above).
But these large predators do not easily coexist with humans, and as human populations increase, lion populations decline. Due to poisoning and hunting by livestock owners, they are now rare outside protected areas, and their distribution is highly fragmented. Many lions in eastern Africa are also being lost to canine distemper. The last wild lion in Africa north of the Sahara was shot in Morocco in 1920.
Lions were once far more widespread than they are today. In historic times they were found throughout much of southern Eurasia (map of the lion's former range). Anciently, they were also present in Greece and the Balkan Peninsula. For example, they are mentioned repeatedly in the Iliad. Prehistorically, they were distributed even more widely. Their fossils are known from Germany, Italy, northern Asia, and even North America. From Turkey to India, they were common even as late as 1850. And it's likely that in the Middle East in prehistoric times, they formed a hybrid zone with tigers, with which they easily cross.
Strange hybrid cats:
Only a small, population of about 250 individuals survives, all either in western India's Gir Forest National Park and Wildlife Sanctuary, also known as Sasan-Gir, or in nearby areas on the Kathiawar Peninsula (indicated by arrow in the upper right corner of the map above). Established in 1965, Gir Forest has about 258 square kilometers of fully protected area (national park) and 1153 square kilometers of sanctuary. So the only remaining wild lions in Asia enjoy full protection only when they stay within a relatively tiny region measuring only about 99 square miles, an area smaller than most U.S. counties. (Map showing the Kathiawar Peninsula and the location of Gir Forest N.P. >>)
Lions generally live about 12 to 14 years in the wild, but usually longer in captivity, often more than 20 years.
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Prothero: A Rebuttal
Branches of Biology