He said that they are often the primary care takers of other vulnerable people, especially children adding that this is particularly the case in areas where the parent generation
is missing because of HIV and AIDS, economic migration or conflict and children are left in the care of their grandparents.
However, because this report incorporates data from the parent generation
in 1968, or before the additional Latino and immigrant samples were added, the sample is too small to explore mobility among Latinos.
According to the researchers, their study, with other evidence, "suggests that evolution equipped the parent generation
to sample its environment, and then, possibly via heritable epigenetic changes, to prepare the next generation to better cope with this environment," added Leshem.
As there's no parent generation
, we become the surrogate and teach them.