Overview
An ancient fossil from China has provided evidence of animal-microbe partnerships extending back approximately 550 million years. This discovery pushes back the known timeline for such intimate biological associations.
Research Context
The established understanding of microbes often centers on their roles as external organisms, such as Salmonella bacteria or flu viruses, which are associated with illness. However, many significant relationships occur with microbes inhabiting an organism internally. The research contributes to understanding the historical depth of these internal symbiotic relationships.
Findings
- The fossil originates from China.
- It dates back 550 million years.
- The fossil reveals evidence of animal-microbe partnerships.