Scientists think they know why humans live so long: Moms

As a new study links maternal care with human and animal longevity, some researchers worry the findings could be harmful for mothers if taken out of context.

Scientists think they know why humans live so long: Moms
A woman holds a laughing child over the water at a sunny beach

As a new study links maternal care with human and animal longevity, some researchers worry the findings could be harmful for mothers if taken out of context.