Final answer:
Evidence from Dmanisi suggests Homo erectus was the first hominin species to leave Africa, with remains in Eurasia dating back to about 1.85 million years ago.
Step-by-step explanation:
Based on evidence from Dmanisi, we can assume that Homo erectus was the first hominin to leave Africa. This assertion stems from the discovery of hominin remains in Dmanisi, located in modern-day Georgia, which have been dated to approximately 1.85 million years ago. The hominins at Dmanisi are thought to represent a link between H. erectus and H. ergaster. The Dmanisi hominins could potentially illustrate the expansion of our ancestors out of Africa and show one of the earliest known presences of human ancestors in Eurasia. Moreover, the occurrence of H. erectus on Java by 1.3 to 1.6 million years ago supports the hypothesis of an early departure from Africa and subsequent settlement in Asia.