# Differences between Goldstone bosons and fermions

I have been looking into basic SUSY and SUGRA theory and have a question relating to Goldstinos (particles giving gravitinos mass).

Simply are these analogous to Goldstone bosons produced in the Goldstone model which is due to symmetries, not super-symmetries being broken.

So they are like the same mechanism but in a Super-symmetric sense, why are they needed because surely if SS is broken (and they are produced) there wouldn't need to be a pair of fermion to boson particles or would there?

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At high enough energies, the (different, symmetry-violating) masses of the particles may be ignored (the mass is negligible relatively to the high energy) and the particles restore their membership in the multiplets i.e. representations of the symmetries (such as doublets of $SU(2)$ or the pairs of superpartners in SUSY). That's also why the symmetry breaking doesn't affect the number of particle species that may be extracted from high-energy experiments (well above the symmetry breaking scale).