In a feature that was a bit off the beaten track for me, I've covered the orientation of desert ants, which can make use of a wide range of tools from step counter to vibration sensing. One of the interesting questions in the field is how the ants compute the information coming from their various navigation tools and how they eventually decide where to go.
My feature is out in Current Biology today:
How ants find their way
Current Biology, Volume 22, Issue 16, R615-R618, 21 August 2012
Photo: Kathrin Steck.