How Overconfidence and Loss Aversion Co-Evolved
A new study demonstrates that human overconfidence persists because its decision-making costs make it a credible, peacock-like evolutionary signal of underlying ability.
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A new study demonstrates that human overconfidence persists because its decision-making costs make it a credible, peacock-like evolutionary signal of underlying ability.
… This wasn’t just in my head. In a 2017 study led by the evolutionary psychologist Robin Dunbar, researchers at the University of Oxford found that nights out with friends support...
Uncovering the ancient roots of modern excessive worry.
Parenting may have evolved by repurposing the brain’s ancient hunger circuits. Long before parenting became widespread, many animals simply laid eggs and left their offspring to su...
A long-term hyena study reveals female reproductive inequality exceeds male inequality over multiple generations.
A new preprint study suggests that some pro-life attitudes may be motivated by a person’s own mating strategy.
Heated disagreements about sexuality and gender are everywhere these days. As an evolutionary-trained clinician who specializes in gender-specific medicine and men’...
Three cultural shifts are quietly making men's mental health worse, and clinicians may be part of the problem.
It’s a familiar concept: the long, slow march from mud to mind meant that only toward the upper tier would we find such developments as cognition. Source
Why is there sex—or, more precisely, sexual reproduction? If you're an evolutionary biologist, the answer isn't obvious. Sexual reproduction is biologically costly, requiring not o...
While economist Brian Arthur models the development of technology, he refers to it as the “evolution” of technology. Source
Excavation of Neanderthal and other sites is leveling even further the fabled Ascent of Man. Source
Scientists say some of the traits that define modern humans may have evolved only after long-standing biological and cultural barriers were broken. Human evolution is often present...
The fundamental problem with this analysis is that sexual reproduction does not make anything modular. Source
In evolution, mutations that increase fitness can be thought of as moving uphill, whereas mutations that decrease fitness can be thought of as moving downhill. Source
To make sense of some characteristics that species exhibit from birth, you have to turn to an old discredited theory known as Lamarckism.
We must be ready to ask some questions about many of the evolution stories we have taken for granted. Source
A new study reveals how cooperation emerges and persists without complex social structures or genetic kinship.
Adami says, “it is hard not to see the parallels to other evolutionary innovations, for example the co-option of the existing crystallin protein in the eye.” Source
But then the complexity is not interesting. Crucially, it’s not really information. Source
Biologists, zoologists and psychologists have been trying to trace the origins of human language for centuries. One well-known theory, known as the social brain hypothesis, suggest...
I recently contributed to a thread on the Arena which included some references to the development of bipedalism in our ancestors but feel that certain aspects of the original t...
Why do two individuals faced with the same information sometimes make completely different decisions? It is a question made famous by Nobel laureate Daniel Kahneman, whose book "Th...
A new study reveals that non-human primates share a fundamental intuition for geometry with humans.
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