What is the most intresting interaction you have found in bacteria?

Question: What is the most intresting interaction you have found in bacteria?
- Keywords:
  bacteria,
  disease,
  research
Asked by elliestephens to Lena on 14 Mar 2012. This question was also asked by yazzybee.
- Lena Ciric answered on 14 Mar 2012:
  
  Hi Ellie. The most interesting interaction I’ve found is the ability of one species of bacteria to pass on genes for resistance to antibiotics to another species. It’s like a cat passing on it’s genes for a tail to a human and the human then growing a tail. Bacteria are pretty amazing! 🙂

Question: What is the most intresting interaction you have found in bacteria?