deep-sea

Many other countries and environmental groups oppose deep-sea mining in international waters without further research.

Former Conservative defence and Foreign Office minister Tobias Ellwood has warned that the UK is "behind the curve" in tracking Russia's deep-sea operations.

The deep-sea sabotage is most worrying because it can take a repair boat several weeks to find a break and initiate a fix.

While the blobfish is known for its misshapen silhouette, in its natural deep-sea habitat it actually resembles a regular fish, with its shape kept together by the high water pressure.

The Last Breath tells the tale of a group of deep-sea divers working on an oil installation on the North Sea bed who race to rescue a stranded teammate following an accident.