The fossil record shows that E. longirostris has
apparently undergone no evolutionary change in
skeletal morphology over the last 400,000 yr, which
may be one of the best-documented instances of
prolonged evolutionary stasis in a small reptile on an
oceanic island. Unfortunately, we still do not know
whether the differences it exhibits from other species
of Eumeces are the result of adaptation to the insular
environment of Bermuda or whether the Bermuda
skink is an unchanged relict of an ancestral species
that has since become extinct on the mainland.