"Seeing the 3-D print of a human being left us all speechless," Kassewitz added in the release. "For the first time ever, we may be holding in our hands a glimpse into what cetaceans see with sound. Nearly every experiment is bringing us more images with more detail."

The next step for researchers, they said in the release, is determining how dolphins may be sharing these echolocation images with other members of their pack as part of a "sono-pictorial language."

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