In these videos, a biologist introduces us to the microbes that live all around us.

Hi, my name is Sally Warring. I am a microbiologist at the American Museum of Natural History. I study microbes, organisms that are too small to be seen without a microscope. They live in the air, soil, and water all around us. Some even live in our own bodies!

In these videos, I’ll introduce you to our tiny neighbors. And we’ll explore how these microscopic organisms act as architects, builders, travelers, parasites, hunters, scavengers, and prey.