Futureproof Extra: The Refractory Period

The refractory period refers to the length of time it takes for a male to be able to ejaculate after just ejaculating and is a trait that is shared by many creatures across the animal kingdom.
But why do males experience this and what causes it?
Jonathan was joined by Susana Lima, Principal investigator at the Champalimaud Research Center for the Unknown to discuss.
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