KC,
Mathias was in Borneo for 3 months studying the symbiotic relationship between N. bicalcarata and a species of ants that live in the hollow tendrils of that species. As most of you know N. bicalcarata is the only species of Nepenthes that is also an ant plant. The ants would live in the tendrils protecting the plant while the plants provide a home to the ants.
The ants would enter into the pitcher through the hollow of the tendril and grab insects that has fallen prey in the pitcher. These species of ants are able to swim in the pitcher fluid.
Hope he would be able to share with us here a little about the research he has done on this.