Bacteria learned there’s strength in numbers. These communities are called biofilms.
An international team of scientists believe they have across the “microbial Pompeii” after they found preserved bacteria and microscopic particles of food on the surface of teeth more than 1,000 years old. The findings were made after the dental calculus or plaque that covered the ancient teeth was analyzed. Some very important discoveries were made in the process: ancient oral bacteria had already by