What would you say is the most complex or interesting animal you have studied or worked with?

Question: What would you say is the most complex or interesting animal you have studied or worked with?
- Keywords:
  preference,
  research,
  work
Asked by tawnijade15 to Lewis on 10 Mar 2014.
- Lewis Dean answered on 10 Mar 2014:
  
  It is really tricky to pick just one. It is difficult to say that one animal is more complex than another, because they all have different things that they are good at (and I would say that they are all really interesting).
  
  At the moment I am working with capuchin monkeys and their groups are really interesting. They have lots of good friends and others who they don’t get on with as well!

Question: What would you say is the most complex or interesting animal you have studied or worked with?