Every skin flake, hair follicle, eyelash, and spit drop cast from your body contains instructions written in a chemical code, one that is unique to you.
of a mythological monster in Loch Ness. But in that genetic soup there are bound to be strands of material left by passing humans as well. And unlike Nessie, people tend to get a little funny about who snoops on their genetic secrets.
The research team took water and sand samples from near the Whitney Laboratory for Marine Bioscience and Sea Turtle Hospital at the University of Florida, and from environments along a river in Duffy's home country of Ireland. Among the sites they collected samples from was an isolated island and a mountain stream far from human habitation.
Only the island and remote stream were free of human DNA, although traces of the research team's own genes could be extracted from their footprints in the isolated island's sand. "It's standard in science to make these sequences publicly available. But that also means if you don't screen out human information, anyone can come along and harvest this information,""That raises issues around consent. Do you need to get consent to take those samples? Or institute some controls to remove human information?"
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