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What does the study of domesticated birds tell us about the evolution of human language?

What does the study of domesticated birds tell us about the evolution of human language? IMAGE: Researchers analysed the genomic, neurobiological and singing-type differences between the domesticated Bengalese finch (see image above) and its closest wild relative. Image:  UNIVERSITY OF BARCELONA Language is one of the most notable abilities humans have. It allows us to express complex meanings and transmit knowledge from generation to generation. An important question in human biology is how this ability ended up being developed, and researchers from the universities of Barcelona, Cologne and Tokyo have treated this issue in a recent article. Published in the journal

Expert: Disease Avoidance Instincts No Match For COVID-19

Humans guard against illnesses by avoiding those who look or act sick. But how does that behavioral immune system contend with pandemics like coronavirus, which can spread without symptoms? Pathogen-avoidance psychology describes how people detect and react to cues of infection risk. You may experience anxiety or in certain contexts you might experience disgust. That s really tied to this idea of preventing infection, because the kinds of things that we become disgusted by are those that are highly pathogenic, said Joshua Ackerman, an associate professor of psychology at the University of Michigan. But those traits evolved before humans built civilizations that spawned pandemics, and tend to focus on symptoms like sneezing, coughing or open sores.

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