Live Science on MSN
'Biological time capsules': How DNA from cave dirt is revealing clues about early humans and Neanderthals
The oldest sediment DNA discovered so far comes from Greenland and is 2 million years old.
Scientists used decades old air filters to read DNA in dust, revealing a long decline in biodiversity across northern Sweden.
Morning Overview on MSN
Old military air samples hid climate change, scientists find
Decades-old air samples once collected for military surveillance have turned out to be an accidental time capsule of climate ...
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