I would suggest without seeing more of the picture's context that the rocks might be plaster casts found as part of a gorilla (or other large animal) enclosure at a zoo/wildlife park. Having the footprint would stimulate spectator interest...
Given the diversity of the human species, there is no “normal” human genome sequence. We are all mutants.
Given the diversity of the human species, there is no “normal” human genome sequence. We are all mutants.
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