By Alissa Scheller
African lions are in decline -- they currently number about 35,000, and researchers say the situation is critical in West Africa, where there are only about 400 of the animals left. Large mammal populations in the region declined dramatically in the last few decades, mostly because of the voracious demand of the bushmeat trade. West Africa contains some of the poorest nations in the world, and inadequate conservation funding makes enforcement in protected areas rare. Infographics.