White shark Dold’s latest ping has revealed something remarkable—he’s moved into the mouth of the St. Lawrence River. 🦈 In this Tracking the Science update, OCEARCH Data Scientist John Tyminski explains what this discovery means, why it matters for shark behavior research, and how Dold’s movements are helping us better understand white sharks in the Northwest Atlantic. Each ping is another step toward protecting sharks and restoring the balance of our oceans. | OCEARCH

Hey OCEARCH Crew! 🌊 Ever wondered how our Global Shark Tracker works — or why sometimes it looks like a shark swims across land? Each shark carries a SPOT tag that connects to the Argos satellite system, but they only ping when they come to the surface. That means there can be gaps in time and space between pings. If those pings are near a peninsula or coastline, the Tracker draws a straight line between them — even if it cuts across land. We don’t “guess” the route — we show you the real data.