Ocean
Sydney reopens Coogee Beach under heavy patrols after woman critically injured in shark attack
Saturday's attack was the latest in a series of shark encounters off Australian beaches. The week before, a man died after being attacked by a shark while fishing off the coast of Western Australia.
WATCH: Norway recovers Chinese porcelain, European-made goods from 18th-century shipwreck
Russian ship that sank after strange explosions reportedly carying nuclear reactors to North Korea
Finding yourself in the quiet: A stay at Cyprus's Anassa resort - review
Don't hold your breath: How hammerheads maintain temperature - study
Shark gills can act as natural radiators, cooling down the blood, muscles and organs of a shark.
Researchers find lost WWII sunken ship that killed 1,000 Allied POWs
An American submarine torpedoed the Japanese Montevideo Maru not knowing that there were more than 1,000 Allied POWs on board.
What is the giant blue hole that opened in the Western Caribbean? - study
The blue hole, which has been named Taam ja’ Blue Hole (TBH) or ‘Deep Water Hole in English’ has an estimated maximum depth of 274.4 meters below sea level.
Oceans are heating up as El Niño weather patterns return
The climate phenomenon known as "El Niño" has caused oceans to reach the highest temperatures in recorded history.
New box jellyfish species found in Hong Kong's waters - study
Box jellyfish, scientifically known as class Cubozoa, includes some of the highly venomous marine animals that are widely known in tropical waters, the study said.
New coral reef discovered in Ecuador's Galapagos Islands
The South American country last year expanded the Galapagos marine reserve by 60,000 square km, an extension of the 138,000 square km already in place, to protect endangered migratory species
Archaeologists to find lost underwater civilization with magnetic fields
Magnetic data, like seismic data, is collected by those looking to extract energy sources from the sea floor in order to map out the landscape for construction.
Rising Antarctic ice melt will dramatically slow global ocean flows - study
Deep ocean water flows from the Antarctic could decline by 40% by 2050, according to a study published on Wednesday in the journal Nature.
Israel must protect its two sea wonders - opinion
With plastic, microplastic and shipping pollution, deep sea mining and plans for pipelines to Europe, action needs to be taken to ensure that human activity is done responsibly.
Red Sea is younger, smaller version of Atlantic Ocean - Saudi study
Geologists have long argued about the structure of the Red Sea. Saudi Arabian geologists now insist it is a fully developed ocean.
