We discuss the effects induced by the potential presence of hyperons in hot and ultra-dense matter
within the context of neutron star mergers. Specifically, we address their effect on the dominant
post-merger frequency of the gravitational waves. By performing a simulation campaign with a
large sample of hyperonic and nucleonic equations of state, we explicitly show that the unique
thermal behavior of hyperonic equations of state results in a systematic shift of the dominant
frequency with respect to the nucleonic reference level. The predicted shift has values of up to 150
Hz, and it could be detected with the newest generations of gravitational wave detectors. Thus this
approach opens a new path for signaling the presence of hyperons in neutron star remnant matter.