Part 3/10:

Evidence of this verdant past can be found in the many ancient lake beds and river systems that once thrived in the region. For instance, ancient Lake Mega Chad was once one of the largest freshwater lakes in the world, dwarfing modern-day Germany in area. The archaeological record illustrates thriving human communities that relied on rich natural resources, as depicted in rock art showing scenes of cattle herding, fishing, and agriculture. Fossil records confirm an ecosystem filled with wildlife, including species now confined to more tropical environments.