On September 25, 1513, Vasco Nunez de Balboa “discovered” the Pacific Ocean, after a trek across the Isthmus of Panama.
The Pacific came as a surprise to Balboa, but every Critter onshore knew it was there, and had been for a long time. A Really Long Time.
Rhinos do not disdain these Discoveries; We have them all the time, though usually on a more domestic scale.