  We have used a set of archived Hubble Space Telescope/ACS images to probe the
evolved populations of the globular cluster 47 Tucanae. We find an excess of
Asymptotic Giant Branch (AGB) stars in the cluster core. We interpret this
feature as the signature of an extra-population likely made by the progeny of
massive stars originated by the evolution of binary systems. Indeed the
comparison with theoretical tracks suggests that the AGB population of 47 Tuc
can be significantly contaminated by more massive stars currently experiencing
the first ascending Red Giant Branch.
