A strange pattern emerged when shark tags from Australia and the Bermuda Triangle both showed sudden deep dives, sharp temperature jumps to the high 70s, and days of movement inside another animal.

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While many sharks hunt for small, abundant prey when looking for a meal, great hammerheads have a supersized strategy with some big payoffs—eat other sharks. For a long time, scientists have observed ...

After multiple dusky sharks killed a swimmer off Israel’s coast this year, scientists investigated what might have triggered the attack in hopes of preventing similar incidents A dusky shark swims in ...