"It was so much bigger than what you would expect," Kori Garza said. Earth's oceans are full of big surprises -- something Kori Garza knows better than most. The marine biologist has been on thousands ...

What started as a routine day on the water took a wild turn when a massive tiger shark appeared out of nowhere. This video captures the raw, unfiltered moment of the encounter up close, unpredictable, ...

Off Norfolk Island in the South Pacific, tiger sharks grow an average of two feet longer than those on the Great Barrier Reef. We've only started unraveling the mystery. Scientists have tracked the ...