Scientists solve 20,000-year missing gap in human historyHomo sapiens left Africa 70,000 years ago20,000-year gap filled by ancient DNA
Scientists have traced the origin of the modern horse to a lineage that emerged 4,200 years agoAround 4,200 years ago, a specific lineage of horse with a genetic mutation quickly became dominant across Eurasia, indicating the start of human influence in spreading domesticated horses globally.