DAN at DEMA Show 2021

DURHAM, NC – October 26, 2021 – For more than 40 years DAN has played a crucial role in the dive industry, championing diver safety, risk management, and emergency preparedness.

After last year’s virtual DEMA Show, we at DAN are looking forward to meeting with dive professionals from around the world in person once again.

Super Sub

Dutch submersible manufacturer, U-Boat Worx, reveals the fastest addition yet to its fleet of models - the Super Sub.
Dutch submersible manufacturer, U-Boat Worx, reveals the fastest addition yet to its fleet of models - the Super Sub.

Distinguished by a long tail and advanced wing design, the Super Sub is equipped with a propulsion system with four powerful thrusters that delivers a total of 60 kW allowing for steep 30-degree climbs and dives.

Peter Sotis, pictured in 2013
Peter Sotis, pictured in 2013

Peter Sotis convicted of attempting to illegally export rebreathers to Libya

If the name Peter Sotis rings a bell, it is no coincidence. He was Rob Stewart's dive buddy when the filmmaker tragically lost his life on a deep rebreather dive in 2017, after which he was ostracised by the dive community as well as sued by Stewart’s family for his role in Stewart's death. Both the incident and the lawsuit have been covered in the magazine.

Surfers are the highest-risk group for fatal shark bites, especially by juvenile white sharks
Surfers are the highest-risk group for fatal shark bites, especially by juvenile white sharks

"Mistaken identity theory" behind shark bites put to the test

Why sharks sometimes bite humans remains unclear, but potential reasons include mistaken identity, whereby sharks are thought to mistake humans for their typical prey; curiosity; hunger; and defensive/offensive aggression.

The mistaken identity theory has received little scientific scrutiny and the visual similarity between humans and pinnipeds at the surface has been debated largely on the basis of human visual perception, rather than that of sharks.