Christie's is getting ready to present The Golconda Blue, the largest Fancy Vivid Blue Diamond ever to be offered at auction.

The episode, witnessed off the Australian coast, offers a rare glimpse into the brutal efficiency of the ocean’s top predator.

A new study based on two decades of data shows what happens in an ocean ecosystem without great white sharks. Great white ...

Second only in size to the blue whale, seeing a fin whale surface from the ocean's depths can leave you spellbound!

A mysterious whale that has long puzzled scientists may not be an anomaly, but a clue to what climate change is doing beneath ...

Feedback is delighted to hear from a reader who proposes an ingenious new unit of data – but we have some quibbles with the ...

A mysterious whale that has puzzled scientists for decades may not be an anomaly, but a clue to what climate change is doing ...

The Maltese Islands have been visited by a monster of the deep… and this one’s as large as they get.   In photos shared on ...

Blue whales are the largest animals to have ever lived on Earth, with some mature adults reaching 100 feet and tipping the ...

Summer is on the way, with Europe's beach resorts dusting off their sun loungers, marine life gathering for feeding seasons and a packed programme of seaside festivals and arts events around the world ...

I've seen more whales than I've ever seen in the last four ... It's one of the largest known global gatherings of these blue behemoths. "If there's a lot of food around, the blues will kind ...

The Saya de Malha Bank is one of the world’s largest seagrass fields and the planet’s most important carbon sinks. It faces ...