CBS NEWS : 1700 POUND SHARK TRACKED OFF COAST OF NORTH CAROLINA
Excerpt:Sharks don't ping every day. Their movements are tracked by devices attached to their dorsal fins. The trackers can't transmit through water, OCEARCH senior data scientist John Tyminski said in a video published by the organization. To accurately confirm a shark's location, the tracker must break the surface while an Argos satellite is above. The satellites are only in a given spot for about 13 minutes. During that time, the tracker must send multiple messages for a location to be confirmed.
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ARE YOU AFRAID OF SHARKS? Leave me a comment! Siren
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