About Marine Life
The ocean covers 71% of Earth's surface and harbors an estimated 2.2 million species — most still undiscovered. Marine ecosystems range from sunlit coral reefs teeming with color to the crushing blackness of hadal trenches 11km deep. Every year, scientists describe hundreds of new ocean species, reminding us how little we know about our own planet.
Featured Marine Life
Great White Sharks Are Way More Cautious Than You Think
Tracking data shows great whites actively avoid areas where orcas have been spotted — even abandoning prime hunting grounds for months.
How Sea Turtles Use Earth's Magnetic Field to Navigate
Loggerheads imprint on the magnetic signature of their birth beach and cross entire oceans to return decades later.
The Octopus: Three Hearts, Blue Blood, and Alien Intelligence
Octopuses can edit their own RNA, change color in milliseconds, and solve complex puzzles — yet they live only 1-2 years.
Coral Reefs Are Bleaching Faster Than Models Predicted
The 4th global bleaching event is underway, and some reefs may never recover if ocean temperatures continue rising.