9 results for “microbe”

1. Life & Biology

   Bacteria and Viruses

   Microbes, organisms too small to see, were the only life on the planet for most of its history

   Article · 4 min read

   

2. Life & Biology

   The Origin of Life

   microbes, from rocks in Australia 3.5 billion years old. Microbes are still building identical mounds in Shark

   Article · 4 min read

   

3. The Human Body

   The Immune System

   microbes that would kill you if they could. Almost none of them get the chance. Standing

   Article · 4 min read

   

4. Planets & the Solar System

   Saturn

   microbes, and the ocean sample is free for the taking, already in space. Why it matters

   Article · 4 min read

   

5. Life & Biology

   Evolution

   microbes. Then, about 540 million years ago, animals with shells appear; then fish; then, around 370 million

   Article · 4 min read

   

6. The Human Body

   Lungs and Breathing

   microbes. It passes down the throat and into the windpipe, a tube held open by rings

   Article · 4 min read

   

7. Planet Earth

   The Atmosphere

   microbes in the oceans learned to split water using sunlight and released oxygen as waste. Around

   Article · 4 min read

   

8. Life & Biology

   Ecosystems and Food Webs

   microbes yet to be found. Many will go extinct before they are described. Habitat destruction, especially

   Article · 4 min read

   

9. The Human Body

   Digestion

   microbes on Earth: trillions of bacteria of hundreds of species, weighing a kilogram or more. They

   Article · 4 min read