You, Planet: Biosphere of the Body

This is an unknown, alien world. Deep canyons and cracks scar the landscape and imposing mountain ranges tower over scorched plains. Moist jungles and acidic lakes hide strange, unknown creatures: ferocious predators, grazing vegetarians, cunning quick-change artists...

but this alien planet is not from outer space. This planet is you, your skin, and the microscopic ecosystems of your body.