"On average each of us has 100 trillion cells, 85% of which are bacteria and protozoa."
- Patricia Richardson, Biologist

Image source here.

living on earth

"95% of the Earth's living mass is bacteria."
- University of Leicester

Quorum Sensing: How Bacteria Communicate

Princeton's Bonnie Bassler discovered how bacteria "talk."
Bonnie had applied to about 50 jobs, but nobody was interested. Princeton gambled. In 2002 Bonnie was awarded a MacArthur Fellowship [the "genius grant"]. Dr. Bassler was elected to the National Academy of Sciences in 2006.