Anemonefish, sometimes called clownfish, have been popular attractions in aquariums ever since Disney's animated film "Finding Nemo" arrived in cinemas in 2003. Living symbiotically with sea anemones that shelter them from predators, the fish drive away organisms that nibble at their hosts. Anemonefish have also shown they will provide their hosts with the food given to them by humans, but does this happen in the wild?
