"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 ...

A team at Project Hiu tag a tiger shark. Chelsea Black is on the boat, working with former shark fishermen from Indonesia to place a GPS tracker on the shark's dorsal fin. Chelsea Black is a shark ...

Diving into an ocean is an invitation into a world of mystery. The deeper you go, the more complex this mystery becomes. There are colors of fringing corals. There are sounds, those hissings, whispers ...