The Leaf Slug: Elysia cf. marginata
A vegetarian sap-sucking sea slug that can regrow its entire body? Underwater photographer Wesley Oosthuizen takes a closer look at this curious little marine critter.
A vegetarian sap-sucking sea slug that can regrow its entire body? Underwater photographer Wesley Oosthuizen takes a closer look at this curious little marine critter.
The 144-foot Nucleus had a “checkered past” after previously sinking twice, and once rammed and sank another boat on Lake Huron, the Great Lakes Shipwreck Museum said in a news release announcing the discovery.
This is a pretty significant shipwreck…considering its age, the fact that it is a barquentine and we can’t overlook the vessel’s checkered past. The wreck site is littered with shovels too…and a few dinner plates, which speaks to their work and shipboard life.
Shipwreck Society Executive Director, Bruce Lynn
(Photo credit, top image: US Naval Institute Photo Archive)
The US Naval History and Heritage Command (NHHC) confirmed the identity of a wreck site off the coast of Hokkaido, Japan, as USS Albacore (SS 218). The NHHC made the announcement on Thursday, after several months of examining Japanese surveys conducted on the site in 2022.
In the early part of the 20th century, American physicist and chemist, Professor Elihu Thomson—the person credited with putting the eventual use of helium on the diving menu—had originally proposed the use of hydrogen as a suitable replacement for nitrogen in the breathing mix used by divers. David Strike has the story.