More than 58 million people have watched the video of a turtle chasing a purple ball around a hardwood floor (recently posted to the Animal Family group on Facebook). It fascinates us to see a turtle fascinated by a purple ball. But why not a turtle fascinated by a purple ball? All animals enjoy novel stimulation, all of us like to be engaged by the world. In fact, that connection between being alive at all and being interested in things in the world is so very close that we can't distinguish between them.

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