A simply mind-blowing preparation of the skull of an American paddlefish, Polyodon spathula. In life the paddle-shaped snout is covered by thousands of electroreceptors that detect the swarms of zooplankton on which the paddlefish feeds.

This was on display in the gift shop at the Museum of Osteology in Oklahoma City when I visited in July of this year. I was relieved it wasn’t for sale, first because it truly would have bankrupted me, and second because as a fellow excavator of antiquities once said, “It belongs in a museum!”

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