Any deep divers on the Forum? Not me, but I found this BBC article fascinating. The video clip in the article, about the diver/marine biologist, Laurent Ballesta, has some stunning, other-worldly footage of the marine life he's found deep down, often using an electronically-controlled rebreather.
In 2010, Laurent Ballesta took the first photograph of a living coelacanth alongside diver, Cédric Gentil (Credit: Laurent Ballesta/Andromede Oceanologie)
Thanks to Ballesta's work, we now know the coelacanth is among the longest-living fish species, with a lifespan of around 100 years, and has one of the slowest life histories of all marine fish – so, like deep-sea sharks with a reduced metabolism, the coelacanth grows slowly, taking as long as 69 years to reach sexual maturity, and with a gestation period of around five years.
In 2010 four friends, carrying 32kg (71lb) worth of camera equipment, sunk beneath the waves of Sodwana Bay, off the east coast of South Africa. It was then that photographer, Laurent Ballesta stared directly into the eyes of a creature once thought to have died out with the dinosaurs – and took the first ever photograph of a living coelacanth.
In 2010 four friends, carrying 32kg (71lb) worth of camera equipment, sunk beneath the waves of Sodwana Bay, off the east coast of South Africa. It was then that photographer, Laurent Ballesta stared directly into the eyes of a creature once thought to have died out with the dinosaurs – and took the first ever photograph of a living coelacanth.

In 2010, Laurent Ballesta took the first photograph of a living coelacanth alongside diver, Cédric Gentil (Credit: Laurent Ballesta/Andromede Oceanologie)