Bird Geniuses:The Smart Crows鳥界天才：聰明的烏鴉

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What is the smartest animal on the planet？ Many people think of elephants and their incredible memories or dolphins with their large， complex brains. One of the most surprisingly clever animals is a black bird seen almost everywhere in the world—the crow. The birds’ sophisticated brains are capable of performing amazing feats of memory and problem-solving.

地球上什么動(dòng)物最聰明呢？很多人會(huì)想到大象和它們絕佳的記憶力，或是擁有龐大、復(fù)雜大腦的海豚。（剩余1982字）