You may think these alien-looking bacteria would be unwelcome guests, but these lifeforms
actually make up 90 per cent of the living cells in our bodies. As these
incredible CGI images show, the human body is home to trillions of
weird and wonderful lifeforms.Tube shaped escherichia coli use their
three tails to swim vigorously up and down our guts, while salmonella
which are famous for food poisoning scares live happily on our skin with
no ill effects to us.
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