Science
Ancient Homo Erectus DNA May Still Live Inside You
Your body might carry a tiny genetic echo from a human species that vanished over 100,000 years ago — and a new protein study has found the first possible chemical evidence that ancient interbreeding really happened.
110,000 years agoWhen Homo erectus is estimated to have gone extinct
The facts
- 1A new study suggests that modern humans may carry genetic material from Homo erectus, an ancient human species that lived across Africa and Asia before going extinct roughly 110,000 years ago.
- 2Scientists used a method called paleoproteomics — analysing proteins preserved in ancient fossils — because proteins can survive in bones far longer than DNA, giving researchers a new way to read evolutionary history.
- 3The research focused on Denisovans, a mysterious ancient human group known mainly from a few bones found in a Siberian cave, and found protein signals that may link them back to Homo erectus ancestors.
- 4If confirmed, this would mean at least three ancient human groups — Homo sapiens, Neanderthals, and Denisovans — interbred with each other, and that Homo erectus genes may have been passed down through Denisovans into living people today.
- 5The study is still preliminary; scientists caution that protein evidence is harder to read than DNA, so further fossil discoveries and independent testing will be needed before the conclusion is accepted widely.
Why it matters
Every person alive may carry small fragments of ancient human history inside their own cells. Understanding which ancient groups mixed with our ancestors helps scientists map human migration routes, explain why different populations have different disease resistances, and reveal how our species became what it is today.
Sources
- Indian Express
- Max Planck Institute for Evolutionary Anthropology
