Global agreements and local efforts have made progress, but the sea still faces mounting threats. This year’s observance reminds us that preserving ocean health is not optional; it’s essential.

This map is a Spilhaus projection, showing the world's seas and oceans as a single body of water, centred on Antarctica and ...

As we celebrate World Ocean Day, new research shows the role that the ocean twilight zone plays in keeping the planet healthy.

Scientists decided to try to map the remote, aquatic ecosystems around Kangaroo Island and Olive Island in Australia by attaching video cameras to the area’s sea lions, which routinely dive 300 ...

Biogeographical regions of marine organisms, i.e., their distribution across different habitats, often overlap well with the major global ocean currents. The geological age of the currents plays a ...

The world's nations are gathering in France next month to tackle what the United Nations calls a global emergency facing the world's oceans.

The marine photographer who captured the footage said it could be the world's first recorded sighting of a black seadevil alive in broad daylight near the ocean surface.