what is the most interesting bacteria you have found??

Question: what is the most interesting bacteria you have found??
- Keywords:
  bacteria,
  discovery,
  interesting
Asked by niamh costi to Chloe on 9 Nov 2015.
- Chloe Huseyin answered on 9 Nov 2015:
  
  I like to think that all bacteria (and other micro-organisms) are interesting.
  
  Some of them have the potential to make you sick and others can help to keep you healthy. Some bacteria and yeasts are used to make different foods and drinks and others can be engineered to produce things like medicines… Or engineered to be different colours and used for really cool art like some of these people did:
  
  http://www.microbeworld.org/backend-submitted-news/1998-announcing-the-2015-asm-agar-art-winners-agarart

Question: what is the most interesting bacteria you have found??