Understanding cookiecutter sharks

For years, researchers studying marine life in the wild would occasionally come across animals—such as dolphins, swordfish, leatherback sea turtles, whales, white sharks and even humans—with oddly shaped plugs of tissue ...

Steep decline in giant sea turtles seen off US West Coast

Scientists were documenting stranded sea turtles on California's beaches nearly 40 years ago when they noticed that leatherbacks—massive sea turtles that date to the time of the dinosaurs—were among those washing up on ...

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