Scientists build new ‘tree of life’ for placentals, visualize common ancestor
Scientists have reconstructed the common ancestor of placental mammals–an extremely diverse group including animals ranging from rodents to whales to humans–using the world’s largest dataset of both genetic and physical traits. (more…)
Better science communication could lead to a more informed American public.
Public acceptance of climate change’s reality may have been influenced by the rate at which words moved from scientific journals into the mainstream, according to anthropologist Michael O’Brien, dean of the College of Arts and Science at the University of Missouri. A recent study of word usage in popular literature by O’Brien and his colleagues documented how the usage of certain words related to climate change has risen and fallen over the past two centuries. Understanding how word usage affects public acceptance of science could lead to better science communication and a more informed public.
“Scientists can learn from this study that the general public shouldn’t be expected to understand technical terms or be convinced by journal papers written in technical jargon,” O’Brien said. “Journalists must explain scientific terms in ways people can understand and thereby ease the movement of those terms into general speech. That can be a slow process. Several words related to climate change diffused into the popular vocabulary over a 30-50 year timeline.” (more…)
Developing a shared sense of global community could help reduce major episodes of violence
In the tribal societies of the Amazon forest, violent conflict accounted for 30 percent of all deaths before contact with Europeans, according to a recent study by University of Missouri anthropologist Robert Walker. Understanding the reasons behind those altercations in the Amazon sheds light on the instinctual motivations that continue to drive human groups to violence, as well as the ways culture influences the intensity and frequency of violence.
“The same reasons – revenge, honor, territory and jealousy over women – that fueled deadly conflicts in the Amazon continue to drive violence in today’s world,” said Walker, lead author and assistant professor of anthropology in MU’s College of Arts and Science. “Humans’ evolutionary history of violent conflict among rival groups goes back to our primate ancestors. It takes a great deal of social training and institutional control to resist our instincts and solve disputes with words instead of weapons. Fortunately, people have developed ways to channel those instincts away from actual deadly conflict. For example, sports and video games often involve the same impulses to defeat a rival group.” (more…)
James Watson, a UA anthropologist, has published chapters describing how long-term environmental trends encourage stable adaptations within local environments.
Human/environment interactions have a history as long as the existence of our species on the planet.
Hominid ancestors began polluting their environment nearly 700,000 years ago with the control of fire, and humans have not looked back since.
The modern phenomenon of global warming is very likely the direct result of human pollution and destruction of the environment, said James Watson, a University of Arizona assistant professor in the School of Anthropology. (more…)
UCLA anthropologists asked hundreds of Americans to guess the size and muscularity of four men based solely on photographs of their hands holding a range of easily recognizable objects, including handguns. (more…)
Aerobic exercise triggers a reward system in the body of long-distance running creatures like humans and dogs, but not ferrets, a study led by UA anthropologist David Raichlen suggests.
In the last century, something unexpected happened: Humans became sedentary. We traded in our active lifestyles for a more immobile existence.
But these were not the conditions under which we evolved – our hunter-gatherer predecessors were long-distance endurance athletes. (more…)
EAST LANSING, Mich. — A Michigan State University anthropologist who spent more than a year infiltrating the black market for human kidneys has published the first in-depth study describing the often horrific experiences of poor people who were victims of organ trafficking.
Monir Moniruzzaman interviewed 33 kidney sellers in his native Bangladesh and found they typically didn’t get the money they were promised and were plagued with serious health problems that prevented them from working, shame and depression. (more…)
EAST LANSING, Mich. — In a narrow, modest laboratory in Michigan State University’s Giltner Hall, students pore over African skeletons from the Middle Ages in an effort to make the bones speak.
Little is known about these Nubians, meaning the information collected by graduate and undergraduate students in MSU’s Forensic Anthropology and Bioarchaeology Program will help shed light on this unexplored culture. (more…)
