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USS Grayback, a U.S. Navy submarine lost in 1944 to enemy air attack, has been found.

Wreck of World War II submarine USS Grayback discovered off Japan

The submarine was found by the Lost 52 Project, which locates lost U.S. World War II submarines, and is the first U.S. submarine discovered off the coast of Japan. Japanese records indicate that the sub was sunk by a 500-pound bomb dropped by a naval bomber in February 1944.

British U class submarine HMS URGE under way.

Wreck of WWII British submarine found off Malta

HMS Urge—part of Britain's 10th Submarine Flotilla—left the Mediterranean island of Malta on April 27, 1942 but never made it to its destination of the Egyptian port of Alexandria. Until its discovery this summer, the reason for both the ship's disappearance and its final resting place were unknown. The discovery of HMS Urge suggests it sank in 1942 after hitting an explosive marine mine placed by an enemy German warship.

Dive Label

To clearly identify your own underwater photo gear, especially on crowded dive boats or in dive centres highly frequented by underwater photographers, labelling your photography or videography gear comes in handy.

The Japanese aircraft carrier Akagi pictured underway in the Summer of 1941.

Wrecks of two WW2 Japanese aircraft carriers found

This month's discoveries came after weeks of searching by crew members based on the research vessel Petrel. The vessel is owned by Vulcan Inc, a company created by the late Microsoft co-founder Paul Allen.

One ship, the Kaga, was discovered last week, while wreckage from another carrier, Akagi, was found on Sunday, Vulcan Inc. said in a press release.

"Every shipwreck we find reminds us all of the ultimate sacrifice made by those who served their countries," said Robert Kraft, Vulcan Inc.'s director of undersea operations, in a press release. "Our team is truly honored to have discovered the Japanese Flagship Carrier, Akagi."

Fiona Sharp diving her AP Diving rebreather, Bonaire, Octobe 2019

Tributes are paid to Dr Fiona Sharp

A report on social media stated that the 55-year-old diver was ascending from a 91.5m (300ft) solo rebreather dive in Bonaire, and was found unresponsive on the reef at 24m (80ft) with the loop out of her mouth. (It is not known whether she had planned to dive to that depth or not). She was brought to the surface and medivaced. She did not regain consciousness. It is thought that all of her equipment was recovered. Her Inspiration rebreather head has already been downloaded for analysis. At the time of writing this piece, it is not known what happened.

Octopuses that live deeper in the ocean have bumpier skin

Scientists from the Field Museum in Chicago, USA recently discovered that Pacific warty octopuses don’t all have the same appearance, nor do they all live at the same ocean depth.

Their findings, which was published in the Bulletin of Marine Science, indicated that the bumpier the octopus’ skin was, the deeper in the ocean they would be found.

In their research, the team examined 50 Pacific warty octopuses from the Northeast Pacific Ocean, as well as specimens from the University of Miami Marine Laboratory and the California Academy of Sciences.

West Indies manatees
West Indies manatees

Listening in on manatees can determine population numbers

To successfully conserve and restore manatee populations, scientists need to know how many of them there are in a specific habitat. This isn’t always easy to find out, particularly in the Bocas del Toro province in Panama, where Antillean manatees live in turbid brackish waters, covered by thick aquatic vegetation.

Other methods, like aerial and sonar surveys, and infrared cameras, present logistical challenges and can be costly.

Thomas Cook's collapse leaves 150,000 stranded abroad.
Thomas Cook's collapse leaves 150,000 stranded abroad.

Blue O Two issues Thomas Cook Group statement

The British company specialises in liveaboard and resort-based scuba diving holidays and had bought flights from the World's oldest travel agent.

"Thomas Cook Group has been placed into administration.

Unfortunately, Blue O Two has a substantial number of customers affected by the collapse of the group, which includes Thomas Cook Airlines. Thomas Cook Airlines were due to be the supplier of the flight segment of travel on a large proportion of upcoming liveaboard holidays to the Red Sea.