Plural of gyrencephalon; animals with brains that have gyri (ridged surfaces).
From Greek 'gyros' (circle) plus 'encephalon' (brain). This taxonomic term groups animals with the most advanced, wrinkled brains, distinguishing them from smooth-brained creatures.
Gyrencephala include humans, dolphins, and elephants—the smartest animals on Earth all share wrinkled brains, and scientists think those wrinkles are partly why they can think so complexly!
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