Over the course of 10 years, the Billion Oyster Project, one of New York's most ambitious rewilding initiatives, has planted 150 million larvae in its harbour. Did it work?

The world's largest icebergs break off the Antarctic ice sheet. As they drift and melt in the Southern Ocean, they create a unique environment around them.

Nature is in rapid decline but here are five ways to make positive change.

Ninety-nine percent of the world's digital communications rely on subsea cables. Fixing them keeps us all connected – and has changed our understanding of the ocean.

Shipwrecks, some of which may contain fuel, are degrading fast because of climate change.

A damning picture emerges from a public hearing into the failure of Oceangate’s Titan submersible.

More and more new species of sharks are being discovered as humanity peers deeper into the oceans.

Humpback whales have been making a conservation comeback – but warming seas are putting their recovery at risk.