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The Research Vessel R/V Petrel’s autonomous underwater vehicle (AUV) first identified the ship in its side scan sonar on March 17. Upon analysis of the sonar data, the Petrel crew deployed its remotely operated underwater vehicle (ROV) on March 18 to verify the wreckage through its video capabilities.

As more people get their first shots of Covid-19 vaccine, some airline industry traditions are coming back. Airlines are slowly returning to their old boarding policies, while quietly re-adding change fees to certain tickets.

According to Travel Weekly, the majority of major airlines will go back to assessing fees on Basic Economy fares by April 1, 2021.

Cetaceans were not limited by gravity in the buoyant marine environment and evolved multiple giant forms, exemplified today by the largest animal that has ever lived: the blue whale (Balaenoptera musculus).

There are tradeoffs, however, associated with large body size, including a higher lifetime risk of cancer due to a greater number of somatic cell divisions over time.  The largest whales can have ∼1,000 times more cells than a human, with long lifespans, leaving them theoretically susceptible to cancer. 

The 115m-long US Navy destroyer is widely known for her bold action in the Battle off Samar, the Philippines.  The actions of the relatively lightly armed Johnston—sunk after a fierce battle with a large fleet of Japanese warships—helped stop the Japanese Admiral Kurita's Center Force from attacking vulnerable U.S.

Scientists used to think that only mammals and birds experienced different sleep states. More recent research, however, has revealed some reptiles and cuttlefish -- another cephalopod and relative of the octopus -- show non-REM and REM-like sleep.

A new study has found that the octopus has ‘quiet’ and ‘active sleep’, with different episode duration and periodicity, and experiences active sleep after a long episode of quiet sleep.

The exhibition is an excellent opportunity to connect with divers in Russia and Eastern Europe and widen the adaptive diving community, according to Jim Elliott, founder of Diveheart.

“We believe that everyone should have the opportunity to experience the life-changing power of scuba diving. There really are no boundaries to what we can achieve, and we have seen time and time again how educational scuba therapy has built confidence and transformed the lives of people with disabilities all over the world,” said Elliott.