Marine biologists finally found out why great white sharks abandoned an entire coastline, and the reason is shocking. Tracking data revealed the predators vanished from a region they’d dominated for years.
Between February and June 2017, five white shark carcasses washed ashore near Gansbaai, a fishing town on South Africa’s Western Cape coast. Each of the four most recent bodies was missing its liver, and one was also missing its heart. Necropsies found tears across the pectoral girdle, the cartilage arch anchoring the front fins, and rake marks consistent with killer whale teeth. Tooth impressions…