Аннотация:We report on evidence that the highest specific star formation rate (SSFR) in dwarf galaxies
in the local Universe is achieved while they pass the same stage of their chemical evolution corresponding to metallicity of ~1/3Z(Sun). It is supported by the observation that a strong star-burst event had occurred in early spheroids at the virtually same metallicity, imprinted in the peak metallicity of the sub-populations of metal-rich globular clusters (MRGCs).