  In the simplest realization of Brownian motion, a colloidal sphere moves
randomly in an isotropic fluid; its mean squared displacement (MSD) grows
linearly with time $\textit{\tau}$. Brownian motion in an orientationally
ordered fluid, a nematic, is anisotropic, with the MSD being larger along the
axis of molecular orientation, called the director. We show that at short time
scales, the anisotropic diffusion in a nematic becomes also anomalous, with the
MSD growing slower (subdiffusion) and faster (superdiffusion) than
$\textit{\tau}$. The anomalous diffusion occurs at time scales that correspond
to the relaxation times of director deformations around the sphere. Once the
nematic melts, the diffusion becomes normal and isotropic. The experiment shows
that the deformations and fluctuations of long-range orientational order
profoundly influence diffusive regimes.
