While the mystery of consciousness, nonhuman and human remains, we have made great advances in reducing the explanatory gap.
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Birds, dolphins, elephants, mice, pre-historic human beings... Do any creatures other than modern-day people possess what we call consciousness? Brain researchers from around the world are set to explore that question this summer.
Can snakes and turtles feel love? I suppose I'd have to be a snake or a turtle to be sure, and therein lies the rub.
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