What can a whale’s surprise visit in Patagonia possibly have to do with sperm motility? More than you might think. Recently, tour boat passengers in Patagonia, Argentina, were treated to an astonishing display: a whale greeting their boat closely and personally, a rare and heartwarming encounter (source: WATCH: Whale greets tour boat passengers in Patagonia). This moment of nature’s unexpected interaction offers us a metaphor rich in meaning when it comes to the journey of sperm motility — a critical factor in human fertility.