Compare and contrast animal articles

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Article comparing animals to humans?

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"Some Animals Laugh, but Not Just Like Us"

Front

Article explaining an animal experiment in order?

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"Goats are Attracted to Happy Human Faces, a New Study Says"

Front

Article comparing animals to humans?

Back

"Some Animals Laugh, but Not Just Like Us"

Front

Article recommendation:

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"Goats are Attracted to Happy Human Faces, a New Study Says"

Front

Article on animal-human interaction

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"Goats are Attracted to Happy Human Faces, a New Study Says"