- Because it's one of the most diverse communities
in the entire world.
There are more bacteria in a gram of soil
than there are humans on the planet.
So it's an incredibly diverse community of bacteria
and fungi and worms and all different sorts of organisms
interacting with one another.
- There are a lot of bacteria
that naturally produce antibiotics in soil.
There are bacteria called streptomyces
that are very common in soil,
and in fact, they produce many of the antibioitics
that we use in clinics and in research.