VOA慢速英语:Some Birds as Smart as Apes

logically – adv.  of or relating to the formal processes used in thinking and reasoning

mirror – n. a piece of glass that reflects images

empathy – n. the feeling that you understand and share another person's experiences and emotions : the ability to share someone else's feelings

sophisticated – adj. highly developed and complex

diverse – adj. made up of people or things that are different from each other

neocortex – n. the large 6-layered dorsal region of the cerebral cortex that is unique to mammals; broadly :  the mammalian cerebral cortex

cognitive – adj. of, relating to, or involving conscious mental activities (such as thinking, understanding, learning, and remembering)

architecture – n. formation or construction resulting from or as if from a conscious act

challenge – n. a difficult task or problem : something that is hard to do

multilayered – adj. having or involving three or more layers or levels