Humans are leaving their DNA everywhere — and it could lead to ethical issues

Researchers analysed samples gathered from the environment in the US and Ireland, including human footprints at the beach and in the air in hospital rooms and found high-quality human DNA.

From sandy beaches to hospital rooms, humans are leaving their DNA behind everywhere they go, scientists have found.

Researchers analysed samples gathered from the environment in the US and Ireland, including human footprints at the beach and in the air in hospital rooms.