Top 5 Most Intelligent Animals

Ryan McVay/Digital Vision/Getty Images
Measuring the intelligence of creatures who don’t speak our language is tricky. But curious scientists find their ways, weighing brains and devising tests to measure mental acuity, emotions and self-awareness. These top five brainy animals all aced at least some of the tests.
Top 5 Most Intelligent Animals
Ryan McVay/Digital Vision/Getty Images
Measuring the intelligence of creatures who don’t speak our language is tricky. But curious scientists find their ways, weighing brains and devising tests to measure mental acuity, emotions and self-awareness. These top five brainy animals all aced at least some of the tests.
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