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News and Views
Nature 417, 129 (9 May 2002) | doi:10.1038/417129a
Geology: A foot in the past
Tom Clarke
The oldest fossils of footprints ever found on land suggest that animals may have emerged from the seas much earlier than had been thought. Lobster-sized, centipede-like animals made the prints shown here about 500 million years ago.
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