Why did human ancestors evolve such large brains? While humans have an unusual array of characteristics that distinguish us from other species, it is our cognitive abilities and open-ended thinking that are most remarkable. University of Missouri-Columbia researchers found that the ability to excel at social problem solving led human brains to surpass other species in size, developing ecological dominance 1.5 to 2 million years ago.
Mark Flinn and Carol Ward, associate professors of anthropology, along with psychology professor David Geary have integrated this new theory of human intelligence evolution with recent developments in the fields of paleoanthropology, cognitive psychology and neurobiology. Through testing fossils for brain size, body size and archaeological evidence of behavior, along with recent comparisons of our mental abilities to those of apes, the researchers have found support for a theory proposed by zoologist Richard Alexander that humans evolved large brains to negotiate and manipulate complex social relationships.
“Most traditional theories, including that of Charles Darwin, suggested some combination of tool use and hunting were the key selective pressures favoring big brains, but increasing evidence of hunting and tool use in other species such as chimpanzees indicates our ancestors were not unique in that regard,” Flinn said. “The most exceptional of our mental gifts involves understanding what is going on in other people’s minds by using skills such as empathy and self-awareness.”
New measure for the wellbeing of populations could replace Human Development Index
07.11.2018 | International Institute for Applied Systems Analysis (IIASA)
Because not only arguments count
30.10.2018 | Max-Planck-Institut für Mathematik in den Naturwissenschaften (MPIMIS)
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure
Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...
Physicists at ETH Zurich demonstrate how errors that occur during the manipulation of quantum system can be monitored and corrected on the fly
The field of quantum computation has seen tremendous progress in recent years. Bit by bit, quantum devices start to challenge conventional computers, at least...
09.11.2018 | Event News
06.11.2018 | Event News
23.10.2018 | Event News
13.11.2018 | Life Sciences
13.11.2018 | Life Sciences
13.11.2018 | Awards Funding