Hunting the Hairy Mammoth (IMAGE) Aarhus University Caption Prehistoric humans hunt a woolly mammoth. More and more research shows that this species – and at least 46 other species of megaherbivores – were driven to extinction by humans. Credit Engraving by Ernest Grise, photographed by William Henry Jackson. Courtesy Getty's Open Content Program Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.