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The dynamics of TeVeS in a homogeneous and isotropic universe is shown to beequivalent to the dynamics of an interacting two-component system, consistingof a scalar field and a "fluid", related to the matter part, with explicitlygiven coupling term. Scaling solutions (solutions with a constant ratio of theenergy densities of both components) in the "Einstein frame" are found whichare exponentially expanding or contracting with no remaining freedom forBekenstein's $F$ function. In the "physical frame" these solutions are of thepower-law type. An equivalent General Relativity (GR) picture of the dynamicssuggests that it is the scalar field which plays the role of dark matter, whilethe "matter" has to mimic (phantom-type) dark energy.

Power-law solutions for TeVeS