Massive sea urchin populations are destroying Hawaii's coral reefs faster than they can naturally rebuild themselves.

"I want to prove to the world that they're not monsters... 🦈 I'm good to go anytime – I want to push the limits." Netflix ...

This cliff in Hawaii is a hotspot for adrenaline junkies—but beneath the waves, a different kind of thrill awaits. I brought my metal detector and scuba gear to explore what’s been lost beneath the ...

Obsessed with fish? From the regular to the extraordinary, the common to the rare, we love seeing fish swim in the ocean. It’s like a burst of serotonin every time! Imagine how much better our social ...

Federal environmental authorities this month granted a permit for the operation of a long-discussed aquaculture operation ...

Countries are starting to work out how to exploit the deep seas. But we still don’t really know how they work.Is it already ...

Though he's retired from public life, Sir David Attenborough returns to the spotlight in a compelling documentary as he ...

President Donald Trump has signed an order stripping protections from the Pacific Islands Marine Heritage National Monument ...

A Virginia Tech study highlights the potential for a mega-tsunami triggered by a major earthquake in the Cascadia Subduction ...

After three crewmen were swallowed up by the Pacific at the end of World War II, a modern-day rescue effort went to find them ...

Exploring the underwater world through snorkeling provides a unique window into colorful marine life and exquisite coral ...

Oliver Widger, known online as "Sailing with Phoenix," quit his job in Oregon and emptied his 401K after he found out he had Klippel-Feil syndrome.