140,000-Year-Old Human Fossils Reveal New Chapter in Human Evolution

By: | June 1st, 2025

Fossils from off the coast of Java. (Leiden University)

A Lost World Beneath the Waves

A groundbreaking archaeological discovery has unveiled a previously unknown population of Homo erectus, our extinct human ancestors, who thrived approximately 140,000 years ago in what is now the submerged region between Java and Madura in Indonesia. This area, known as Sundaland, was a vast landmass during the last Ice Age, connecting parts of Southeast Asia that are now separated by sea.

Fossils Recovered from the Seafloor

The discovery emerged during a construction project in the Madura Strait, where dredging operations recovered over 6,000 fossilized remains. Among them were two Homo erectus skull fragments and bones from 36 different vertebrate species. This marks the first time such ancient human fossils have been retrieved from the seabed in this region.

Hunters of the Ice Age

Analysis of the fossils revealed cut marks on animal bones, indicating that these ancient humans engaged in sophisticated hunting practices. They hunted turtles and large animals like water buffalo, suggesting a level of behavioral complexity previously unattributed to this species.

Life in a Prehistoric Paradise

The ecological context of Sundaland during the Pleistocene epoch was rich and diverse. It featured rivers filled with aquatic life and plains populated by megafauna like elephants and the extinct Stegodon. The presence of Homo erectus in this environment showcases their adaptability and survival skills.

Rethinking Human Evolution

This discovery challenges long-held ideas about Homo erectus, including their geographic spread and behavioral complexity. It also emphasizes the importance of exploring submerged landscapes in the quest to understand human ancestry.

Nidhi Goyal

Nidhi is a gold medalist Post Graduate in Atmospheric and Oceanic Sciences.

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