Archaeology News Online

In saliva, scientists have found hints that a "ghost" species of archaic humans may have contributed genetic material to ancestors of people living in Sub-Saharan Africa today. In saliva, scientists have found hints that a "ghost" species of archaic human may have contributed genetic material to  ancestors of people living in Sub-Saharan Africa today. The finding comes from a University at Buffalo-led research project  that examined the evolutionary history of MUC7, a gene that codes for an important salivary protein of the same name  [Credit: Bob Wilder/University at Buffalo] The research adds to a growing body of evidence suggesting that sexual rendezvous between different archaic human species may not have been unusual. Past studies have concluded that the forebears of modern humans in Asia and Europe interbred with other early hominin species, including Neanderthals and Denisovans. The new research is among more recent genetic analyses indicating that ancient Af

A sound night’s sleep grows more elusive as people get older. But what some call insomnia may actually be an age-old survival mechanism, researchers report. A Hadza man sleeps on the ground on an impala skin in northern Tanzania  [Credit: David Samson] A study of modern hunter-gatherers in Tanzania finds that, for people who live in groups, differences in sleep patterns commonly associated with age help ensure that at least one person is awake at all times. The research suggests that mismatched sleep schedules and restless nights may be an evolutionary leftover from a time many, many years ago, when a lion lurking in the shadows might try to eat you at 2 a.m. “The idea that there’s a benefit to living with grandparents has been around for a while, but this study extends that idea to vigilance during nighttime sleep,” said study co-author David Samson, who was a postdoctoral fellow at Duke University at the time of the study. The Hadza people of northern Tanzania live by hunting and gat

In saliva, scientists have found hints that a "ghost" species of archaic humans may have contributed genetic material to ancestors of people living in Sub-Saharan Africa today. In saliva, scientists have found hints that a "ghost" species of archaic human may have contributed genetic material to  ancestors of people living in Sub-Saharan Africa today. The finding comes from a University at Buffalo-led research project  that examined the evolutionary history of MUC7, a gene that codes for an important salivary protein of the same name  [Credit: Bob Wilder/University at Buffalo] The research adds to a growing body of evidence suggesting that sexual rendezvous between different archaic human species may not have been unusual. Past studies have concluded that the forebears of modern humans in Asia and Europe interbred with other early hominin species, including Neanderthals and Denisovans. The new research is among more recent genetic analyses indicating that ancient Af

A sound night’s sleep grows more elusive as people get older. But what some call insomnia may actually be an age-old survival mechanism, researchers report. A Hadza man sleeps on the ground on an impala skin in northern Tanzania  [Credit: David Samson] A study of modern hunter-gatherers in Tanzania finds that, for people who live in groups, differences in sleep patterns commonly associated with age help ensure that at least one person is awake at all times. The research suggests that mismatched sleep schedules and restless nights may be an evolutionary leftover from a time many, many years ago, when a lion lurking in the shadows might try to eat you at 2 a.m. “The idea that there’s a benefit to living with grandparents has been around for a while, but this study extends that idea to vigilance during nighttime sleep,” said study co-author David Samson, who was a postdoctoral fellow at Duke University at the time of the study. The Hadza people of northern Tanzania live by hunting and gat