  We study theoretically the hydrodynamics of a fluid drop containing oriented
filaments endowed with active contractile or extensile stresses and placed on a
solid surface. The active stresses alter qualitatively the wetting properties
of the drop, leading to new spreading laws and novel static drop shapes.
Candidate systems for testing our predictions include cytoskeletal extracts
with motors and ATP, suspensions of bacteria or pulsatile cells, or fluids
laden with artificial self-propelled colloids.
