An eastern snapping turtle (Chelydra serpentina), known for its formidable jaw, sits motionlessly. A series of rodent experiments showed that even with abundant food and water, personal space is ...

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This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...