A tiny form of life that secretly keeps the planet running.
Bacteria are among the most abundant life forms on Earth. They exist inside our bodies, in the soil beneath our feet, and even floating in the atmosphere.
Although many people associate bacteria with disease, most bacteria are actually essential for life.
So what would happen if every single bacterium suddenly vanished?
Trillions of bacteria live in the human gut and help digest food.
Bacteria recycle nitrogen and carbon in ecosystems.
Without bacteria, dead organisms would decompose extremely slowly.
The human digestive system would struggle without gut bacteria. Important vitamins like vitamin K would become scarce.
Digestive systems weaken across many animals.
Dead material accumulates due to slow decomposition.
Nitrogen cycles collapse, affecting global agriculture.
Cheese production depends on bacterial cultures.
Yogurt forms when bacteria ferment milk.
Pickles, kimchi, and sauerkraut rely on bacteria.
Press the button below to imagine a world without bacteria.