Long before industry, our ancestors faced toxic metals, including lead. This exposure may have shaped the evolution of human intelligence.
Articles on evolution of intelligence
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Why do researchers care if a bee can learn to recognise a human face? When we push animals outside familiar territory, we can learn a lot about intelligence.
A better brain might help an animal find more mates, have more sex, and eventually have more babies.
Top contributors
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Animal Behaviour Researcher, Australian National University
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Research Fellow, School of Biological Sciences, Monash University
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Professor, Environmental Medicine, Icahn School of Medicine at Mount Sinai
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Professor of Pediatrics and Cellular and Molecular Medicine, University of California, San Diego
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Professor in Geochronology and Geochemistry, Southern Cross University