Homo erectus, a hominin species that originated in equatorial Africa or the Caucasus region of Eurasia, arrived on the island of Java in Indonesia around 1.3 million years ago — 300,000 years later than previously thought, according to an analysis of zircon grains in tuffs from the archaeological site of Sangiran. Archaic hominins. Image credit: Ninara / CC BY 2.0. The World Heritage archaeological site of Sangiran in Central Java is widely...